Petrolisthes elegantissimus

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This page should be cited as follows (rationale):
Werding B, Hiller A (2015) Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P. hastatus Stimpson, 1858 and resurrection of P. inermis (Heller, 1862) (Crustacea, Anomura, Porcellanidae). ZooKeys (516) : 95–108, doi. Versioned wiki page: 2017-04-10, version 140227, https://species-id.net/w/index.php?title=Petrolisthes_elegantissimus&oldid=140227 , contributors (alphabetical order): Pensoft Publishers.

Citation formats to copy and paste

BibTeX:

@article{Werding2015ZooKeys,
author = {Werding, Bernd AND Hiller, Alexandra},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P. hastatus Stimpson, 1858 and resurrection of P. inermis (Heller, 1862) (Crustacea, Anomura, Porcellanidae)},
year = {2015},
volume = {},
issue = {516},
pages = {95--108},
doi = {10.3897/zookeys.516.9923},
url = {http://zookeys.pensoft.net/articles.php?id=5887},
note = {Versioned wiki page: 2017-04-10, version 140227, https://species-id.net/w/index.php?title=Petrolisthes_elegantissimus&oldid=140227 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P. hastatus Stimpson, 1858 and resurrection of P. inermis (Heller, 1862) (Crustacea, Anomura, Porcellanidae)
A1 - Werding B
A1 - Hiller A
Y1 - 2015
JF - ZooKeys
JA -
VL -
IS - 516
UR - http://dx.doi.org/10.3897/zookeys.516.9923
SP - 95
EP - 108
PB - Pensoft Publishers
M1 - Versioned wiki page: 2017-04-10, version 140227, https://species-id.net/w/index.php?title=Petrolisthes_elegantissimus&oldid=140227 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.516.9923

Wikipedia/ Citizendium:

<ref name="Werding2015ZooKeys">{{Citation
| author = Werding B, Hiller A
| title = Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P. hastatus Stimpson, 1858 and resurrection of P. inermis (Heller, 1862) (Crustacea, Anomura, Porcellanidae)
| journal = ZooKeys
| year = 2015
| volume =
| issue = 516
| pages = 95--108
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.516.9923
| url = http://zookeys.pensoft.net/articles.php?id=5887
| pmc =
| accessdate = 2020-11-24

}} Versioned wiki page: 2017-04-10, version 140227, https://species-id.net/w/index.php?title=Petrolisthes_elegantissimus&oldid=140227 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Decapoda
Familia: Porcellanidae
Genus: Petrolisthes

Name

Petrolisthes elegantissimus Werding & Hiller, 2015 sp. n.Wikispecies linkZooBank linkPensoft Profile

Type material

Indonesia. RMNH.CRUS.D.56374, holotype, male, CL 8.9 mm × CW 8.7 mm, NW Guinea, Pulau Japen, coast near Sarawandori, leg. W. van Seroei, 24.2.1955. Paratypes: RMNH.CRUS.D.56408, 4 males, 5 females (3 ov), same data as holotype. RMNH.CRUS.D.56375, 2 males, CL 8.8 mm × CW 8.8 mm, and CL 6.3 mm × CW 6.0 mm, same data as holotype. Indonesia: Snellius Expedition. RMNH.CRUS.D.56376, 5 males, 3 females (ov), Los (near Misool), 3–6.10.1929; RMNH.CRUS.D.56377, 2 males, Wotap, (Pulau Wotap), Tanimbar Island, beach and reef, 20.–23.10.1929; RMNH.CRUS.D.56409, 3 males, 1 female (ov), Pelee near Misool, beach, 04.10.1929. SMF 48329, 1 male, 1 female (ov), CL 8.1 mm × CW 8.6 mm, Sissie near Misool, beach, 06.10.1929.

Measurements

Largest male: CL 8.9 mm × CW 8.7 mm; largest female (ov): CL 8.1 mm × CW 8.6 mm.

Description

Carapace as long as broad or slightly broader than long, invertedly heart-shaped, broadest at metabranchial level; dorsal surface granular, branchial regions with low striae on outer margin. Front strongly produced, sinuously trilobate; lateral lobes formed by the supra-ocular edge; rostrum dorsally with deep median sulcus extending beyond protogastric ridge; orbits shallow, nearly straight, outer orbital angle rounded, forming a shallow lobe extending to hepatic margin. Epibranchial angle distinct but without a notch or spine, continuing in a ridge along the branchial margin. Protogastric ridge, cervical grooves and regions well marked. Lateral walls with scattered, simple setae.
Telson (Fig. 4C) composed of 7 plates; lateral plates narrow; lateral margins of central plate emarginate.
Basal segment of antennular peduncle (Fig. 4B) with faint transverse rugae; anterior margin rounded, granular, with minute teeth at mesial and lateral corners.
First movable segment of antenna with a lamellar, spine-tipped lobe, second with a longitudinal granular crest extending proximally into a rounded tooth, third rounded, unarmed.
Chelipeds sub-equal, merus with transverse, low granules on dorsal surface; anterior margin armed distally with a prominent, spine-tipped lobe. Carpus straight, margins subparallel, about 4–5 times as long as broad; dorsal surface covered with small, verruciform granules; anterior margin armed with 3–5 irregularly-set, acute small teeth of similar size; posterior margin slightly curved outwards with larger granules forming a crest along the distal half of length extending in a prominent, curved, distal tooth. Chela large, slender, posterior margin weakly curved, unarmed; dorsal surface covered with low, spherical granules, with a low, median crest extending to the base of the dactylus; fingers unarmed, gape without or with very short pubescence.
Walking legs extremely long and slender. Ischium devoid of setae or with few scattered, plumose setae. Merus devoid of setae or with few simple setae, unarmed or with a varying number (1–4) of irregularly-set, sharp spines along anterior margin with a prominent postero-distal spine in L1, weakly developed or lacking in L2, and postero-distally rounded in L3. Carpus, propodus and dactylus with scattered, simple setae. Propodus with distal triplet of movable spinules, and one additional spine on median part of posterior margin. Dactylus with 3 movable spines on posterior margin.

Variation

Large specimens normally present more elongate and narrower chelipeds than smaller ones. The teeth of the anterior margin of the cheliped carpus often varies in the same specimen in number and position.

Habitat

Petrolisthes elegantissimus sp. n., like the other two species, seems to be a shallow water species.

Distribution

Only known from a restricted region in eastern Indonesia.

Etymology

The specific name is derived from the Latin elegans (tasteful, refined), referring to a more elegant and gracile general habitus compared with that of the related species, Petrolisthes hastatus and Petrolisthes inermis. The species name is an adjective in the nominative singular.

Original Description

  • Werding, B; Hiller, A; 2015: Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P. hastatus Stimpson, 1858 and resurrection of P. inermis (Heller, 1862) (Crustacea, Anomura, Porcellanidae) ZooKeys, (516): 95-108. doi

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