Pseudopallene tasmania

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Arango, Claudia P., Brenneis, Georg (2013) New species of Australian Pseudopallene (Pycnogonida: Callipallenidae) based on live colouration, morphology and DNA. Zootaxa 3616 : 417 – 417, doi. Versioned wiki page: 2016-12-23, version 117003, https://species-id.net/w/index.php?title=Pseudopallene_tasmania&oldid=117003 , contributors (alphabetical order): PlaziBot.

Citation formats to copy and paste

BibTeX:

@article{Arango2013Zootaxa3616,
author = {Arango, Claudia P. AND Brenneis, Georg},
journal = {Zootaxa},
title = {New species of Australian Pseudopallene (Pycnogonida: Callipallenidae) based on live colouration, morphology and DNA},
year = {2013},
volume = {3616},
issue = {},
pages = {417 -- 417},
doi = {TODO},
url = {},
note = {Versioned wiki page: 2016-12-23, version 117003, https://species-id.net/w/index.php?title=Pseudopallene_tasmania&oldid=117003 , contributors (alphabetical order): PlaziBot.}

}

RIS/ Endnote:

TY - JOUR
T1 - New species of Australian Pseudopallene (Pycnogonida: Callipallenidae) based on live colouration, morphology and DNA
A1 - Arango, Claudia P.
A1 - Brenneis, Georg
Y1 - 2013
JF - Zootaxa
JA -
VL - 3616
IS -
UR - http://dx.doi.org/TODO
SP - 417
EP - 417
PB -
M1 - Versioned wiki page: 2016-12-23, version 117003, https://species-id.net/w/index.php?title=Pseudopallene_tasmania&oldid=117003 , contributors (alphabetical order): PlaziBot.

M3 - doi:TODO

Wikipedia/ Citizendium:

<ref name="Arango2013Zootaxa3616">{{Citation
| author = Arango, Claudia P., Brenneis, Georg
| title = New species of Australian Pseudopallene (Pycnogonida: Callipallenidae) based on live colouration, morphology and DNA
| journal = Zootaxa
| year = 2013
| volume = 3616
| issue =
| pages = 417 -- 417
| pmid =
| publisher =
| doi = TODO
| url =
| pmc =
| accessdate = 2020-03-07

}} Versioned wiki page: 2016-12-23, version 117003, https://species-id.net/w/index.php?title=Pseudopallene_tasmania&oldid=117003 , contributors (alphabetical order): PlaziBot.</ref>


Taxonavigation

Familia: Callipallenidae
Genus: Pseudopallene

Name

Pseudopallene tasmania Arango, Claudia P., 2013Wikispecies linkPensoft Profile

  • Pseudopallene tasmania Arango, Claudia P., 2013, Zootaxa 3616: 417-417.

Materials Examined

Material examined:Holotype (J 4517): 1 female (PSE 4 a), Nov- 2009, Eaglehawk Neck, Tasmania, 5–20m depth on Orthoscuticella spp. Paratypes (S 92216): 2 females (PSE4, 4b) from same location as holotype; (S 92217): 2 sub-adults (TAS 21 a, 35 a), Jan- 26 2007, Waterfall Bay at Eaglehawk Neck, 21 m depth, in kelp forest.

Diagnosis

Diagnosis: Neck short, constricted; legs with no constrictions, femur thickest compared to distal segments, tibia 2 about 4 mm long, more slender than tibia 1; strigilis with very high number of compound spines, 68 in total, seventh article alone with 25 spines. Red-toned colouration of midgut when alive, losing colour after ethanol preservation. Sequence divergence from other Pseudopallene forms: 10 to 14 % in COI and 21 to 23 % in ITS.

Description

Description of female: Leg span 38 mm; body (Figs. 3 D; 7 A) fully segmented, glabrous, holotype with encrusting epibionts on cuticle giving rough appearance dorsally; body and legs pale yellow, cuticle semitransparent, red-coloured midgut with its diverticula seen through cuticle when live, not visible after preservation. Neck (Fig. 7 A,B) short, marked constriction, pre-ocular surface not divided, without mid-dorsal mound. Ocular tubercle (Fig. 7 A,B) as tall as wide, with dorsal papillae, eyes darkly pigmented. Abdomen (Fig. 7 A) as long as fourth lateral processes, not constricted distally or inflated, cleft anal opening. Lateral processes 1.5 times as long as wide, glabrous. Proboscis (Fig. 7 B,G,H) bullet-shaped, slightly inflated on distal section before tapering to mouth, no tuft of setae surrounding mouth. Cheliphore (Fig. 7 A,B,G) scape with constriction line proximally, not in male (Fig. 7 H), as long as proboscis; chela palm inflated, fingers short, about half of palm length, with linear, smooth cutting-edge, movable finger slightly shorter than immovable finger, touching immovable finger just before its tip, fingers leaving proximal gap when closed, no setae on chelae. Oviger fifth article longest, straight, compound spine formula: 25: 18: 15: 10 (Fig. 7 D), terminal claw margins not denticulated, only light crenulation on endal side (Fig. 7 C). Legs (Fig. 7 E,F,H) glabrous, with row of tiny, spare spinules dorsally and ventrally on major articles; third coxa twice as long as first; second coxa about three times as long as coxa 1; femur swollen compared to tibiae, subequal in length with tibia 2, eggs visible through cuticle; tarsus short, about 12 % of the propodus, one large tarsal spine aligned with heel spines on propodus; propodus straight, heel inconspicuous, four heel spines, two middle ones larger, eight sole spines; main claw nearly half the propodus length (Fig. 7 F). Measurements of female holotype in mm: body length = 3.31; body width = 1.87; abdomen length = 0.45; ocular tubercle height = 0.38; proboscis length = 1.14; chela fingers = 0.63; scape = 1.42; oviger 5 th article = 1.12, 10 th article = 0.34, claw = 0.16; 3 rd leg coxa 1 = 0.55, coxa 2 = 1.69, coxa 3 = 0.93, femur = 4.6, tibia 1 = 3.8, tibia 2 = 4.7, tarsus = 0.19, propodus = 1.23, claw = 0.51.

Etymology

Etymology: Species named after the type locality. Tasmania seems to harbour highly diverse Pseudopallene assemblages yet to be described. Noun in apposition.

Discussion

Remarks: When alive, these specimens were clearly distinct from other Pseudopallene specimens with their clear cuticle showing red midgut diverticula. This pattern of colouration has not been described before in the genus. Together with the high count of compound ovigeral spines (> 60 spines) and the inconspicuous propodal heel, these are unusual characters that segregate this new species from other known Pseudopallene. According to the molecular data, the species is highly divergent with more 10 % variation in the COI and 23 % in the ITS sequences compared to other local Pseudopallene species (Table 2).

Taxon Treatment

  • Arango, Claudia P.; Brenneis, Georg; 2013: New species of Australian Pseudopallene (Pycnogonida: Callipallenidae) based on live colouration, morphology and DNA, Zootaxa 3616: 417-417. doi
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