Darwiniella conjugatum

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Chen Y, Lin H, Chan B (2012) Description of a new species of coral-inhabiting barnacle, Darwiniella angularis sp. n. (Cirripedia, Pyrgomatidae) from Taiwan. ZooKeys 214 : 43–74, doi. Versioned wiki page: 2012-08-07, version 26331, https://species-id.net/w/index.php?title=Darwiniella_conjugatum&oldid=26331 , contributors (alphabetical order): Pensoft Publishers.

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BibTeX:

@article{Chen2012ZooKeys214,
author = {Chen, Yi-Yang AND Lin, Hsiu-Chin AND Chan, Benny K.K.},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {Description of a new species of coral-inhabiting barnacle, Darwiniella angularis sp. n. (Cirripedia, Pyrgomatidae) from Taiwan},
year = {2012},
volume = {214},
issue = {},
pages = {43--74},
doi = {10.3897/zookeys.214.3291},
url = {http://www.pensoft.net/journals/zookeys/article/3291/abstract},
note = {Versioned wiki page: 2012-08-07, version 26331, https://species-id.net/w/index.php?title=Darwiniella_conjugatum&oldid=26331 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - Description of a new species of coral-inhabiting barnacle, Darwiniella angularis sp. n. (Cirripedia, Pyrgomatidae) from Taiwan
A1 - Chen Y
A1 - Lin H
A1 - Chan B
Y1 - 2012
JF - ZooKeys
JA -
VL - 214
IS -
UR - http://dx.doi.org/10.3897/zookeys.214.3291
SP - 43
EP - 74
PB - Pensoft Publishers
M1 - Versioned wiki page: 2012-08-07, version 26331, https://species-id.net/w/index.php?title=Darwiniella_conjugatum&oldid=26331 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.214.3291

Wikipedia/ Citizendium:

<ref name="Chen2012ZooKeys214">{{Citation
| author = Chen Y, Lin H, Chan B
| title = Description of a new species of coral-inhabiting barnacle, Darwiniella angularis sp. n. (Cirripedia, Pyrgomatidae) from Taiwan
| journal = ZooKeys
| year = 2012
| volume = 214
| issue =
| pages = 43--74
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.214.3291
| url = http://www.pensoft.net/journals/zookeys/article/3291/abstract
| pmc =
| accessdate = 2024-12-23

}} Versioned wiki page: 2012-08-07, version 26331, https://species-id.net/w/index.php?title=Darwiniella_conjugatum&oldid=26331 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Sessilia
Familia: Pyrgomatidae
Genus: Darwiniella

Name

Darwiniella conjugatum (Darwin, 1854) – Wikispecies link – Pensoft Profile

  • Pyrgoma conjugatum Darwin 1854[1]: 364–365, pl. 12, fig. 7a–c.; Weltner 1897[2]: 255; Gruvel 1905[3]: 306–309; Annandale 1906[4]: 143; Hoek 1913[5]: 264; Broch 1922[6]: 344; Hiro 1931[7]: 154; Sakakura 1934[8]: tab. II (not seen); Hiro 1935[9]: 47, 59–60, 66, 69, fig. 8a–c; Hiro 1937[10]: 468 (not seen); Nilsson-Cantell 1938[11]: 13, 66, tab. III; Broch 1947[12]: 7; Kolosváry 1947[13]: 427; Utinomi 1949[14]: 69 (not seen).
  • Pyrgoma (Nobia) conjugatum Baluk and Radwanski[15] 1967: 487.
  • Nobia conjugatum Ross and Newman 1973[16]: 155, fig. 12d–e; Newman and Ross 1976[17]: 58; Foster 1982[18]: 209, tab. 5, pl. 1G, fig. 7F; Soong and Chang 1983[19]: 244–245, fig. 3; Galkin 1986[20]: 1292; Ren 1986[21]: 146, pl. IV, 15–18; Ogawa and Matsuzaki 1990[22]: tab. I (not seen); Anderson 1992[23]: 306–309, figs 20–21, 37F; Ogawa et al. 1998[24]: 3, fig. 2; Jones et al. 2000[25]: 276; Jones 2003[26]: tabs 6, 8; Poltarukha and Dautova 2004[27]: 111, fig. 66.
  • Nobia conjugata Ogawa and Matsuzaki 1992: app. tab.
  • Darwiniella conjugatum Anderson 1992[4]: 329, figs 38F, 39; Simon-Blecher et al. 2007[28]: tabs I–II.
  • Darwiniella conjugata Asami and Yamaguchi 1997[29]: 13–14, figs 1–2.

Materials examined

CEL-RYU-28-1, Dafu Fishing Harbor, Siaoliouciou Island, Taiwan (22°20'N, 120°22'E), August 2010, coll. B.K.K. Chan, on coral host Cyphastrea serailia (Forskål, 1775). CEL-RYU-28-2 data same as CEL-RYU-28-1. CEL-RYU-38-4, Shanfu Fishing Harbor, Siaoliouciou Island, Taiwan (22°21'N, 120°21'E), August 2010, coll. B.K.K. Chan, on coral host Cyphastrea serailia. CEL-RYU-47-4 data same as CEL-RYU-38-4. CEL-RYU-66-1, Lobster Cave, Siaoliouciou Island, Taiwan (22°20'N, 120°23'E), August 2010, coll. B.K.K. Chan, on host coral Cyphastrea sp.. CEL-RYU-170-1, Shanfu Fishing Harbor, Siaoliouciou Island, Taiwan (22°21'N, 120°21'E), August 2010, coll. B.K.K. Chan, on coral host Cyphastrea japonica.

Diagnosis

Scutum subtriangular, rostral tooth and obvious adductor plate present. Adductor plate angle not obvious. Tergum subtriangular, lateral depressor muscle crests, medial furrow and spur present. Spur triangular, long, curved and sharp.

Description

Shell (8 mm in maximum basal diameter, rostro-carinal diameter to 6 mm) plates fully fused, purple, oval, externally surface with about 25 strip-like projections differing in length and radiating from nearly subcentral orifice to plate margin (Fig. 10A). Bases of shell with about 27 internal ribs radiating from the rim of the inner operculum to the basal margin of the shells (Fig. 10B). Orifice oval, long and narrow, about 3/8 length of rostro-carinal diameter. Scutum and tergum white, fused without any junctions (Fig. 10C, D). Scutum subtriangular, width 1.5 times length of height, occludent margin slightly curved, with a rostral tooth on bottom (Fig. 10F) and continuous teeth along the ventral surface of occludent margin, tooth size increasing gradually from apex to base. Ventral view with an apparent oval-shaped adductor muscle scar (Fig. 10D). Dorsal view with obvious adductor plate, extending below basal margin, plate more than 1/2 height of scutum. Basal margin of adductor plate without obvious adductor plate angle (Fig. 10C). Dorsal surface of scutum with horizontal striations, striations with row of small pores (Fig. 10E).
Tergum subtriangular, lateral depressor muscle crests present. Spur triangular, long, curved and sharp, height reaching more than 1/2 height of tergum, basal margin not obvious due to the curved spur. Dorsal surface with medial furrow, curving from basal margin towards the carinal margin of tergum, width of furrow increased gradually from apex to base (Fig. 10C). Dorsal surface with horizontal striations, striations with row of small pores.
Maxilla oval (Fig. 11A), serrulate setae distally (Fig. 11B) and along inferior margin (Fig. 11C). Maxillule cutting edge straight, without notch, bearing row of 13 large, similar sized setae (consistent through 2 specimens, Fig. 11D, F, and inconsistent through 2 specimens with 11 and 9 large setae, Fig. 11G, H, respectively). Region close to cutting edge with dense fine simple type setae (Fig. 11E), anterior and posterior margin with long simple type setae. Mandible with five teeth (excluding inferior angle) (teeth number consistent in five specimens but differed in morphologies, Fig. 12A, E, F, G, H). Second, third, fourth and fifth teeth bidentated (Fig. 12B, C), the first 4 teeth occupying most of length of cutting edge. Lateral surface, lower margin and cutting edge of mandible bearing simple type setae. Lower margin short, about 1/20 length of total length of mandible, inferior angle ending in a blunt angle with dense, fine setae (Fig. 12D). Mandibular palp rectangular, elongated (Fig. 13A), bearing serrulate setae distally (Fig. 13B) and on inferior margin (Fig. 13C). Labrum bilobed, with V-shaped notch between 2 lobes, 2 sharp teeth on each side of notch (inconsistent in three specimens, Fig. 13D, G, H). Cirrus I with rami unequal, anterior ramus long and slender, with 17-segmented, posterior ramus 7-segmented (Figs 14A, 15A), bearing serrulate setae (Fig. 15B, C, D), dark spots exist on each segment of the ramus (Fig. 15A). Cirrus II with rami almost equal, anterior ramus 8-segmented and posterior ramus 6-segmented (Figs 14B, 15E), bearing serrulate setae (Fig. 15F, G, H), dark spots exist on each segment of the ramus (Fig. 15E). Cirrus III rami equal, anterior ramus 10-segmented, posterior ramus 8-segmented (Figs 14C, 16A), bearing serrulate setae (Fig. 16B, C, D), dark spots exist on each segment of the ramus (Fig. 16A). Cirrus IV–VI long, slender, with equal rami size. Number of segments on Cirrus IV (anterior 16, posterior 16), Cirrus V (21, 20), Cirrus VI (21, 18) (Figs 14D, E, F, 16E, 17A, C). Intermediate segments of Cirrus IV–VI with four pairs of serrulate setae (Figs 16G, 17D, E), distal pair longest, proximal pair shortest. Dark spots exist on each segment of the ramus (Figs 16E, 17A, C). Penis long (1.2 times length of Cirrus VI), annulated, some dark spots present, scattered short simple type setae (Fig. 17G). Pedicel with basidorsal point (Fig. 17G, I), apex bearing short simple type setae (Fig. 17H).

Distribution

South China Sea: Singapore, Mainland China (Hong Kong), Vietnam (Nhatrang Bay).Pacific Ocean: Taiwan (Green Island, Turtle Island, Siaoliouciou Island, Kenting, Suao), Japan, Australia (Western Australia & Great Barrier Reef),Philippine.Indian Ocean: Mauritius (Albion), Bay of Bengal, Thailand (Gulf of Siam), Sri Lanka,Red Sea.

Remarks

Darwiniella conjugatum is widely reported in the Indo-Pacific Ocean. Note Ogawa and Matsuzaki (1992)[30] and Asami and Yamaguchi (1997)[29] misspelled the species name Darwiniella conjugatum as ‘conjugata’.

Taxon Treatment

  • Chen, Y; Lin, H; Chan, B; 2012: Description of a new species of coral-inhabiting barnacle, Darwiniella angularis sp. n. (Cirripedia, Pyrgomatidae) from Taiwan ZooKeys, 214: 43-74. doi

Other References

  1. ↑ Darwin C (1854) A monograph on the sub-class Cirripedia with figures of all the species. The Balanidae, the Verrucidae, etc. Ray Society, London, 684 pp.
  2. ↑ Weltner W (1897) Verzeichnis der bisher beschriebenen recenten Cirripedienarten. Mit Angabe der im Berliner Museum vorhandenen. Archiv für Naturgeschicthe 63: 227-280.
  3. ↑ Gruvel A (1905) Monographie des Cirripedes ou Thecostraces. Masson et Cie, Paris, 472 pp.
  4. ↑ 4.0 4.1 Annandale N (1906) Report on the Cirripedia collected by Professor Herdman, at Ceylon, in 1902. Report to the government of Ceylon on the pearl oyster fisheries of the Gulf of Manaar 5: 137-150.
  5. ↑ Hoek P (1913) The cirripedia of the Siboga-expedition. B. Cirripedia Sessilia. Siboga-Expeditie, Monograph 31b:129–275.
  6. ↑ Broch H (1922) Papers from Dr. Th. Mortensen’s Pacific Expedition 1914–16. X. Studies on Pacific cirripeds. Videnskabelige Meddelelser Nat For Kjobenhavn 73: 215–358.
  7. ↑ Hiro F (1931) Notes on some new Cirripedia from Japan. Memoirs of the College of Science, Kyoto Imperial University Series B 7: 143-158.
  8. ↑ Sakakura K (1934) Pleistocene Pyrgoma from Tiba Prefecture. The Journal of the Geological Society of Japan 41: 575-581. doi: 10.5575/geosoc.41.575
  9. ↑ Hiro F (1935) A study of cirripeds associated with corals occurring in Tanabe Bay. Records of Oceanographic Works in Japan 7: 45-72.
  10. ↑ Hiro F (1937) Studies on the cirripedian fauna of Japan: II. Cirripeds found in the vicinity of the Seto Marine Biological Laboratory. Memoirs of the College of Science, Kyoto University, Series B 12: 385-478.
  11. ↑ Nilsson-Cantell (1938) Cirripedes from the Indian Ocean in the collection of the Indian Museum, Calcutta. Memoirs of the Indian Museum 13: 1-81.
  12. ↑ Broch H (1947) Cirripedes from Indo-Chinese shallow waters. Avhandlinger Norske videnskapsakademi I Oslo 7: 3-32.
  13. ↑ Kolosváry G (1947) A study of Cirripedes associated with corals in the collection of the Hungarian National Museum, Budapest. Proceedings of the Zoological Society of London 117: 425–428.
  14. ↑ Utinomi H (1949) Studies on the cirripedia fauna of Japan. I. Classification and differentiation of species. Seibutsu 4: 62-70.
  15. ↑ Baluk W, Radwanski A (1967) Miocene cirripeds domiciled in corals. Acta Palaeontologica Polonica 12: 457-513.
  16. ↑ Ross A, Newman W (1973) Revision of the coral-inhabiting barnacles (Cirripedia: Balanidae). Transactions of the San Diego Society of Natural History 17: 137-173.
  17. ↑ Newman W, Ross A (1976) Revision of the Balanomorph barnacles; including a catalog of the species. Memoirs of the San Diego Society of Natural History 9: 1-108.
  18. ↑ Foster B (1982) Shallow water barnacles from Hong Kong. In: Morton B Tseng C (Eds). The Marine Flora and Fauna of Hong Kong and Southern China: Proceedings of the First International Marine Biological Workshop, 1980. Hong Kong University Press, Hong Kong: 207-232.
  19. ↑ Soong K, Chang K (1983) The coral-inhabiting barnacles (Crustacea: Thoracica: Pyrgomatidae) from southernmost coast of Taiwan. Bulletin of the Institute of Zoology Academia Sinica 22: 243-253.
  20. ↑ Galkin S (1986) The system of coral-inhabiting barnacles (Cirripedia, Balanomorpha). Zoologichesky Zhurnal 65: 1285-1295.
  21. ↑ Ren X (1986) Studies in Chinese Cirripedia (Crustacea). VII. Family Pyrgomatidae. Studia Marina Sinica 26: 129-158.
  22. ↑ Ogawa K, Matsuzaki K (1990) Revision of the coral-inhabiting barnacles in Japan−preliminary note. Nankiseibutu: The Nanki Biological Society 32: 73-79.
  23. ↑ Anderson D (1992) Structure, function and phylogeny of coral-inhabiting barnacles (Cirripedia, Balanoidea). Zoological Journal of the Linnean Society 106: 277-339. doi: 10.1111/j.1096-3642.1992.tb01249.x
  24. ↑ Ogawa K, Pillay R, Kawasaki H (1998) Coral-inhabiting barnacles (Cirripedia; Pyrgomatidae) from Albion, west coast of Republic of Mauritius. Bulletin of the Biogeographical Society of Japan 53: 1-21.
  25. ↑ Jones D, Hewitt M, Sampey A (2000) A checklist of the Cirripedia of the South China Sea. Raffles Bulletin of Zoology Supplement 8: 233-307.
  26. ↑ Jones D (2003) The biogeography of Western Australian shallow-water barnacles. In: Wells F Walker D Jones D (Eds). The Marine Flora and Fauna of Dampier, Western Australia. Western Australian Museum, Perth: 479-496.
  27. ↑ Poltarukha O, Dautova T (2004) Barnacles (Cirripedia, Thoracica) of Nhatrang Bay. In: Britayev T Pavlov D (Eds). Benthic fauna of the Bay of Nhatrang Southern Vietnam. KMK Scientific Press, Moscow: 89-123.
  28. ↑ Simon-Blecher N, Huchon D, Achituv Y (2007) Phylogeny of coral-inhabiting barnacles (Cirripedia; Thoracica; Pyrgomatidae) based on 12S, 16S and 18S rDNA analysis. Molecular Phylogenetics and Evolution 44: 1333-1341. doi: 10.1016/j.ympev.2007.03.026
  29. ↑ 29.0 29.1 Asami K, Yamaguchi T (1997) Distribution of living and fossil coral barnacles (Cirripedia; Pyrgomatidae) in Japan. Sessile Organisms 14: 9-16. doi: 10.4282/sosj.14.9
  30. ↑ Ogawa K, Matsuzaki K (1992) An essay on host specificity, systematic taxonomy, and evolution of the coral-barnacles. Bulletin of the Biogeographical Society of Japan 47: 87-101.

Images

Figure 10. Hard parts of Darwiniella conjugatum (Darwin, 1854) (CEL-RYU-28-1, CEL-RYU-47-4, CEL-RYU-170-1) A Dorsal view of shell B Ventral view of shell C Dorsal view of fused scutum and tergum D Ventral view of fused scutum and tergum E Horizontal striations on dorsal surface of scutum F Occludent margin base and rostral tooth. (AP: adductor plate, AA: adductor plate angle, SP: spur, scale bar: μm)
Figure 10. Hard parts of Darwiniella conjugatum (Darwin, 1854) (CEL-RYU-28-1, CEL-RYU-47-4, CEL-RYU-170-1) A Dorsal view of shell B Ventral view of shell C Dorsal view of fused scutum and tergum D Ventral view of fused scutum and tergum E Horizontal striations on dorsal surface of scutum F Occludent margin base and rostral tooth. (AP: adductor plate, AA: adductor plate angle, SP: spur, scale bar: μm) 
Figure 11. Oral cone of Darwiniella conjugatum (Darwin, 1854) A Maxilla (CEL-RYU-28-2) B Serrulate setae on apex C Serrulate setae on inferior margin D Maxillule (CEL-RYU-28-2) E Large simple type setae on cutting edge F Maxillule (additional specimen, CEL-RYU-28-1) G Maxillule (additional specimen, CEL-RYU-38-4) H Maxillule (additional specimen, CEL-RYU-66-1). (scale bar: μm)
Figure 11. Oral cone of Darwiniella conjugatum (Darwin, 1854) A Maxilla (CEL-RYU-28-2) B Serrulate setae on apex C Serrulate setae on inferior margin D Maxillule (CEL-RYU-28-2) E Large simple type setae on cutting edge F Maxillule (additional specimen, CEL-RYU-28-1) G Maxillule (additional specimen, CEL-RYU-38-4) H Maxillule (additional specimen, CEL-RYU-66-1). (scale bar: μm) 
Figure 12. Oral cone of Darwiniella conjugatum (Darwin, 1854) A Mandible (CEL-RYU-28-1) B Bidentate second tooth C Bidentate third and fourth tooth D Inferior angle with simple type seta E Mandible (additional specimen, CEL-RYU-170-1) F Mandible (additional specimen, CEL-RYU-66-1) G Mandible (additional specimen, CEL-RYU-38-4) H Mandible (additional specimen, CEL-RYU-28-2). (scale bar: μm)
Figure 12. Oral cone of Darwiniella conjugatum (Darwin, 1854) A Mandible (CEL-RYU-28-1) B Bidentate second tooth C Bidentate third and fourth tooth D Inferior angle with simple type seta E Mandible (additional specimen, CEL-RYU-170-1) F Mandible (additional specimen, CEL-RYU-66-1) G Mandible (additional specimen, CEL-RYU-38-4) H Mandible (additional specimen, CEL-RYU-28-2). (scale bar: μm) 
Figure 13. Oral cone of Darwiniella conjugatum (Darwin, 1854) A Mandibular palp (CEL-RYU-66-1) B Serrulate setae distally C Serrulate setae on inferior margin D Labrum (CEL-RYU-38-4) E Teeth on labrum F Teeth on labrum G Labrum (additional specimen, CEL-RYU-66-1) H Labrum (additional specimen, CEL-RYU-28-1). (scale bar: μm)
Figure 13. Oral cone of Darwiniella conjugatum (Darwin, 1854) A Mandibular palp (CEL-RYU-66-1) B Serrulate setae distally C Serrulate setae on inferior margin D Labrum (CEL-RYU-38-4) E Teeth on labrum F Teeth on labrum G Labrum (additional specimen, CEL-RYU-66-1) H Labrum (additional specimen, CEL-RYU-28-1). (scale bar: μm) 
Figure 14. Line drawing of Darwiniella conjugatum (Darwin, 1854) A Cirrus I B Cirrus II C Cirrus III D Cirrus IV E Cirrus V F Cirrus VI. (scale bar: μm).
Figure 14. Line drawing of Darwiniella conjugatum (Darwin, 1854) A Cirrus I B Cirrus II C Cirrus III D Cirrus IV E Cirrus V F Cirrus VI. (scale bar: μm). 
Figure 15. Cirri of Darwiniella conjugatum (Darwin, 1854) A Cirrus I (CEL-RYU-28-2) B Serrulate setae on anterior ramus apex C Serrulate setae on anterior ramus D Serrulate setae on posterior ramus apex E Cirrus II (CEL-RYU-28-2) F Serrulate setae on anterior ramus apex G Serrulate setae on anterior ramus H Serrulate setae on posterior ramus apex. (scale bar: μm)
Figure 15. Cirri of Darwiniella conjugatum (Darwin, 1854) A Cirrus I (CEL-RYU-28-2) B Serrulate setae on anterior ramus apex C Serrulate setae on anterior ramus D Serrulate setae on posterior ramus apex E Cirrus II (CEL-RYU-28-2) F Serrulate setae on anterior ramus apex G Serrulate setae on anterior ramus H Serrulate setae on posterior ramus apex. (scale bar: μm) 
Figure 16. Cirri of Darwiniella conjugatum (Darwin, 1854) A Cirrus III (CEL-RYU-28-2) B Serrulate setae on posterior ramus C Serrulate setae on posterior ramus D Serrulate setae distally E Cirrus IV (CEL-RYU-28-2) F Serrulate setae on apex G Intermediate segment with 4 pairs of serrulate setae H Intermediate segment with serrulate setae. (scale bar: μm)
Figure 16. Cirri of Darwiniella conjugatum (Darwin, 1854) A Cirrus III (CEL-RYU-28-2) B Serrulate setae on posterior ramus C Serrulate setae on posterior ramus D Serrulate setae distally E Cirrus IV (CEL-RYU-28-2) F Serrulate setae on apex G Intermediate segment with 4 pairs of serrulate setae H Intermediate segment with serrulate setae. (scale bar: μm) 
Figure 17. Cirri and penis of Darwiniella conjugatum (Darwin, 1854) A Cirrus V (CEL-RYU-28-2) B Serrulate setae on apex C Cirrus VI (CEL-RYU-28-2) D Intermediate segment with 4 pairs of serrulate setae E Intermediate segment with 4 pairs of serrulate setae F Serrulate setae on apex G Penis (CEL-RYU-170-1) H apex of penis I Basidorsal point of penis. (scale bar: μm)
Figure 17. Cirri and penis of Darwiniella conjugatum (Darwin, 1854) A Cirrus V (CEL-RYU-28-2) B Serrulate setae on apex C Cirrus VI (CEL-RYU-28-2) D Intermediate segment with 4 pairs of serrulate setae E Intermediate segment with 4 pairs of serrulate setae F Serrulate setae on apex G Penis (CEL-RYU-170-1) H apex of penis I Basidorsal point of penis. (scale bar: μm) 
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