A new deep-sea species of the genus Gracilimesus (Isopoda: Asellota: Ischnomesidae) from the Bay of Campeche, southwestern Gulf of Mexico

被引：1

作者：

Ortiz, Manuel ^{[1
]}

Teresa Herrera-Dorantes, Maria ^{[2
]}

Ardisson, Pedro-Luis ^{[2
]}

机构：

[1] Univ Nacl Autonoma Mexico, Lab Crustaceos, Fac Estudios Super Iztacala, Ave Los Barrios 1, Tlalnepantla 54090, Estado De Mexic, Mexico

[2] Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Dept Recursos Mar, Carretera Antigua Progreso,Km 6,Apartado Postal 7, Merida 97310, Yucatan, Mexico

来源：

REVISTA MEXICANA DE BIODIVERSIDAD | 2019年 / 90卷

关键词：

Bathyal zone; Benthos; Peracarida; Distribution; Morphology; Sediment; Species richness; Taxonomy; CRUSTACEA;

D O I：

10.22201/ib.20078706e.2019.90.2618

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

A new deep-sea species of isopod is described and illustrated. The material was collected in soft substratum in the Bay of Campeche, SW Gulf of Mexico, at a depth of 2,548 m aboard the research vessel "Justo Sierra" on September 4, 2009. Gracilimesus tzasnae sp. nov. can be distinguished from all other known species by its antennula with 5 articles; uropod length vs. pleotelson 0.3x; pereonite 7 not reduced; pereopod 7 absent; pleotelson dorsal surface smooth and not separated in lateral fields. The new species represents the first described Gracilimesus in the Gulf of Mexico. We present a table with the most important diagnostic characters to separate all the known species of the genus Gracilimesus.

引用

页数：7

共 10 条

[1]

Boyko C.B., 2008, WORLD MARINE FRESHWA

[2] Two new species of Ischnomesidae (Crustacea: Isopoda) from the Southern Ocean displaying neoteny [J].