Uroptychus thermalis Baba & de Saint Laurent, 1992

Ahyong, Shane T. & Poore, Gary C. B., 2004, The Chirostylidae of southern Australia (Crustacea: Decapoda: Anomura), Zootaxa 436 (1), pp. 1-88 : 77-79

publication ID

https://doi.org/ 10.11646/zootaxa.436.1.1

publication LSID

lsid:zoobank.org:pub:305EE123-4D3A-4AFA-B760-C7CE276424B1

DOI

https://doi.org/10.5281/zenodo.5029769

persistent identifier

https://treatment.plazi.org/id/03F887C9-9B6B-FFC7-E228-F9C0FB03C34A

treatment provided by

Felipe

scientific name

Uroptychus thermalis Baba & de Saint Laurent, 1992
status

 

Uroptychus thermalis Baba & de Saint Laurent, 1992 ( Fig. 24 View FIGURE 24 )

Uroptychus thermalis Baba & de Saint Laurent, 1992: 324–326 , fig. 2 [type locality: North Fiji Basin].

Material examined. QUEENSLAND: AM P64922 View Materials , 1 male (14.5 mm), Argo Bank, 23°22.34’S, 159°38.73’E, 1497 m, soft sandy limestone, FR0888­D4 GoogleMaps , RV Franklin, 9 Oct 1988 .

Diagnosis. Carapace excluding rostrum longer than wide, widest posterior to midlength; with distinct anterolateral spine; lateral margins irregular but unarmed; dorsum without spines but with scattered scales and rugosities. Anterior margin of sternite 3 with broad concavity and narrow median notch; laterally with distinct tooth. Eyes with cornea dilated. Basal antennal segment with outer spine; ultimate and penultimate peduncle segments unarmed distally. Maxilliped 3 with segments unarmed. Cheliped slender, subcylindrical; about 5 times carapace length; with scattered scales or tubercles. Pereopods 2–4 similar, slender, relative lengths 2>3>4; dactylus with 2 distal spines; propodi widened on medial flexor margin bearing group 4 or 5 spines and single distal spine.

Remarks. The present specimen represents the first record of the species since it was described from from the North Fiji Basin. The Australian specimen differs from the type description in having larger anterolateral projections on the third and fourth sternites, slightly longer anterolateral spines on the carapace, in having a distal spine on the carpus of the cheliped, and two instead of one distal spines on the merus of the cheliped. The differences between the two specimens (11.6 mm cl. for the holotype vs. 14.5 mm in the Australian specimen) appear to be size related;.

The holotype was collected from the vicinity of an active hydrothermal vent at 2000 m depth.

Distribution. Fiji and now from eastern Australia at depths of 1497–2000 m.

AM

Australian Museum

RV

Collection of Leptospira Strains

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Chirostylidae

Genus

Uroptychus

Loc

Uroptychus thermalis Baba & de Saint Laurent, 1992

Ahyong, Shane T. & Poore, Gary C. B. 2004
2004
Loc

Uroptychus thermalis

Baba & de Saint Laurent 1992: 324 - 326
1992