Parvipalpus Jung & Yoon 2015, gen. nov

Autor: Jung, Tae Won, Yoon, Seong Myeong
Rok vydání: 2015
Předmět:
ISSN: 1045-1072
DOI: 10.5281/zenodo.4328890
Popis: Genus Parvipalpus gen. nov. (Korean Name: Ga-neun-chae-jjik-yeop-sae-u-sok, new) Diagnosis Head, anterior lobe developed, subrectangular; anteroventral notch developed; eyes rudimentary. Mandible, palp very reduced and bi-articulate. Antenna 1, accessory flagellum tri-articulate. Gnathopods 1, 2 subchelate, dissimilar in size and shape. Gnathopod 1, anteroventral corner of merus subacutely produced. Pereopod 7 longer than pereopod 5; basis posteriorly expanded and shield-like, posterior margin crenulate. Pleonites 1 and 2 with dorsal spines. Pleonal epimeron 1, anteroventral corner acutely produced forward. Urosomite 1 without dorsal keel. Uropod 1, peduncle with basofacial spine. Uropod 3 parviramous; outer ramus short and inner ramus minute, not reaching half of outer; inner ramus uni-articulate. Telson entire. Type species Parvipalpus holocaudatus sp. nov. (original designation by monotypy) Etymology The composite epithet of the generic name, Parvipalpus, is a combination of the Latin parvus and the Latin palpus, which means ��� small palp ���. This name refers to the shape of the mandibular palp, which is noticeably reduced to a small form. Gender is neuter. Remarks Parvipalpus is the monotypic new genus erected with P. holocaudatus sp. nov., and distinguished from other genera of Nuuanuidae, such as Nuuanu and Gammarella in these points: the palp of the mandible is considerably more reduced (not reduced and linear or falcate in the last article of Nuuanu and Gammarella) and bi-articulate (triarticulate in Nuuanu and Gammarella), the outer ramus of uropod 3 is uni-articulate (bi-articulate and the last article is very small in Nuuanu and Gammarella), and the telson is entire (deeply or fully cleft in Nuuanu and Gammarella).
Published as part of Jung, Tae Won & Yoon, Seong Myeong, 2015, New records of Nuuanuidae (Crustacea: Amphipoda: Senticaudata) from Korean waters, with descriptions of one new genus and two new species, pp. 1045-1072 in Journal of Natural History 50 on page 1048, DOI: 10.1080/00222933.2015.1103914, http://zenodo.org/record/3990181
Databáze: OpenAIRE