Grandidierella Coutière, 1904

Ariyama, Hiroyuki, 2020, Six species of Grandidierella collected from the Ryukyu Archipelago in Japan with descriptions of four new species (Crustacea: Amphipoda: Aoridae), Zootaxa 4810 (1), pp. 1-44 : 3

publication ID	https://doi.org/10.11646/zootaxa.4810.1.1
publication LSID	lsid:zoobank.org:pub:BBD6D565-039A-47C7-9110-653DD75EBDBF
DOI	https://doi.org/10.5281/zenodo.6490651
persistent identifier	https://treatment.plazi.org/id/0387413C-4C7A-FFB2-FF2E-67F93179F931
treatment provided by	Plazi (2020-07-09 10:54:27, last updated 2023-10-31 19:09:05)
scientific name	Grandidierella Coutière, 1904
status

Treatment

Grandidierella Coutière, 1904 View in CoL

[Japanese name: Dorosokoebi-zoku]

Grandidierella Coutière, 1904: 166 View in CoL .—J.L. Barnard & Karaman, 1991: 194.— Myers & Lowry, 2003: 465.

Neomicrodeutopus Schellenberg, 1925: 168 View in CoL .

( Bigrandidierella ) Karaman, 1985: 37.

Propejanice Myers & Desiderato, 2019: 288 View in CoL View Cited Treatment .

Type species. Grandidierella mahafalensis Coutière, 1904 View in CoL , monotypy.

Diagnosis [emended from Ariyama & Taru (2017)]. Body subcylindrical, slightly depressed laterally, smooth. Head, rostrum short, ocular lobes short; eyes small to medium. Urosomites free. Antenna 1 elongate, slender, peduncular article 3 much shorter than article 1, accessory flagellum 1–2 articulate; antenna 2 stouter than antenna 1, flagellum shorter than peduncular article 5. Mandible, palp with 3 articles, article 3 clavate or rectolinear. Maxilla 1 with vestigial inner plate; outer plate with ca. 10 robust setae; palp biarticulate, with several robust setae at tip. Maxilla 2, inner plate usually with mediofacial row of setae. Maxilliped, inner plate with several robust setae distally; outer plate not reaching apex of palp article 2, with many marginal robust setae; palp consisting of 4 articles, article 4 with short robust seta (nail). Coxae small, relatively shallow, slightly or not overlapping; gills present on coxae 2–6; oostegites of female broad, present on coxae 2–5. Male gnathopod 1 greatly enlarged, carpochelate; carpus dilated, propodus short, dactylus stout. Female gnathopod 1 smaller than that of male, subchelate, palm oblique. Gnathopod 2 of both sexes smaller than gnathopod 1, subchelate; carpus longer than or almost same length as propodus, palm transverse. Pereopods 3 and 4 similar to each other, slender; bases elongate. Pereopods 5–7 similar to each other, pereopod 5 much shorter than pereopods 6 and 7; basis of pereopod 7 heavily setose posteriorly. Uropods 1 and 2 biramous, spinous, uropod 1 longer than uropod 2, peduncles longer than both rami; uropod 3 uniramous, peduncle usually shorter than single ramus, dilated medially. Telson entire, short, fleshy, with pair of hooked apical cusps.

Remarks. Recently, Myers & Desiderato (2019) established a new genus, Propejanice Myers & Desiderato, 2019 , having a carpochelate male gnathopod 1 and a setose male gnathopod 2 with a divergent merus. Although they stated Propejanice is close to the genus Janice Griffiths, 1973 , this genus should be synonymized with the genus Grandidierella , because three Grandidierella species ( G. exilis Myers, 1981 ; G. gilesi Chilton, 1921 ; and G. melakaensis Azman & Othman, 2012 ) have such a gnathopod 2. Following this synonymization, Propejanice lagamarensis Myers & Desiderato, 2019 is changed to Grandidierella lagamarensis ( Myers & Desiderato, 2019) comb. nov.

References

Ariyama, H. & Taru, M. (2017) Three species of Grandidierella (Crustacea: Amphipoda: Aoridae) from coastal areas of the Tohoku and Kanto-Tokai Districts, east Japan, with the description of two new species. Species Diversity, 22, 187 - 200. https: // doi. org / 10.12782 / specdiv. 22.187

Azman, B. A. R. & Othman, B. H. R. (2012) Two new species of amphipods of the superfamily Aoroidea (Crustacea: Corophiidea) from the Strait of Malacca, Malaysia, with a description of a new genus. Zoological Studies, 51, 232 - 247.

Barnard, J. L. & Karaman, G. S. (1991) The families and genera of marine gammaridean Amphipoda (except marine gammaroids). Records of the Australian Museum, Supplement, 13 (Part 1 & Part 2), 1 - 866. https: // doi. org / 10.3853 / j. 0812 - 7387.13.1991.91 https: // doi. org / 10.3853 / j. 0812 - 7387.13.1991.367

Chilton, C. (1921) Fauna of the Chilka Lake. Amphipoda. Memoires of the Indian Museum, 5, 519 - 558.

Coutiere, H. (1904) Sur un type nouveau d'Amphipode, Grandidierella mahafalensis, provenant de Madagascar. Bulletin de la Societe philomathique de Paris, Serie 9, 6, 166 - 174.

Griffiths, C. L. (1973) The Amphipoda of Southern Africa. Part 1. The Gammaridea and Caprellidea of southern Mocambique. Annals of the South African Museum, 60, 265 - 306.

Karaman, G. S. (1985) Two new taxa of suborder Gammaridea from Asia, with remarks to some Sri Lanka's species (contribution to the knowledge of the Amphipoda 142). Poljoprivreda i sumarstvo, 31, 15 - 40.

Myers, A. A. (1981) Taxonomic studies on the genus Grandidierella Coutiere (Crustacea, Amphipoda). III. Fijian, Australian and Saudi Arabian species. Bulletin du Museum National d'Histoire Naturelle, Paris, 4 e Serie, 3, Section A, Nº 1, 213 - 226.

Myers, A. A. & Lowry, J. K. (2003) A phylogeny and a new classification of the Corophiidea Leach, 1814 (Amphipoda). Journal of Crustacean Biology, 23, 443 - 485. https: // doi. org / 10.1163 / 20021975 - 99990353

Myers, A. A. & Desiderato, A. (2019) A new genus and species of Aoridae (Amphipoda, Senticaudata), Propejanice lagamarensis gen. nov. sp. nov. from Brazil. Zootaxa, 4629 (2), 287 - 293. https: // doi. org / 10.11646 / zootaxa. 4629.2.11

Schellenberg, A. (1925) Crustacea VIII: Amphipoda. In: Michaelsen, W. (Ed.), Beitrage zur Kenntnis der Meeresfauna Westafrikas. Vol. 3. Fredrichsen, Hamburg, pp. 113 - 204.