Notoprotomima Takeuchi & Lowry, gen. nov.

• Main Authors: Takeuchi, Ichiro, Lowry, James K.
• Format: Text
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Caprellidae; Notoprotomima; Antarctic; Indian; New Zealand; Lowry; Noto; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.4331268; https://zenodo.org/record/4331268

Genus Notoprotomima gen. nov. Diagnosis Head fused with pereonite 1. Antenna 1 well developed; flagellum with more than two articles; accessory flagellum absent. Antenna 2 well developed; flagellum with two articles. Mandible well developed; molar absent; palp 3-articulate; article 3 with two or three large distal marginal setae. Maxilliped well developed; inner plate (basal endite) larger than outer plate (ischial endite); outer plate (ischial endite) well developed; palp article 3 without distal projection; palp article 4 well developed. Pereonite 4 clavate appendage absent. Pereonites 6 and 7 not fused. Pereopod 3 well developed, with seven articles. Pereopod 4 well developed, with seven articles. Pereopod 5 well developed, with seven articles, with well developed dactylus. Gills on pereonites 2 to 4. Pleopods absent. Uropods two pairs; uropod 1, uniramous; uropod 2, uniramous. Telson (dorsal lobe) present. Gender Feminine. Type species Notoprotomima smithi sp. nov. Etymology “ Notoprotomima ” is derived from “ Noto- ” meaning south (from notos = southerly), and protomima . Included species Notoprotomima includes two species: Notoprotomima grandimana (Guerra-García, 2004a); Notoprotomima smithi sp. nov. Remarks This new genus, Notoprotomima , is most closely related to Pseudoprotomima McCain, 1969 and Symmetrella Laubitz, 1995. Three species have been reported so far (McCain 1969; McCain and Gray 1971; Guerra-García 2004a) from Pseudoprotomima; P. hurleyi McCain, 1969 from 788 to 1609 m depth near New Zealand, P. hedgpethi McCain and Gray, 1971 from 71 to 110 m depth in the South Indian Ocean and P. grandimana Guerra-García, 2004a from less than 18 m depth along the coast of Western Australia. The present new genus, Notoprotomima , differs from Pseudoprotomima (see McCain and Gray 1971; Takeuchi 1993) in the following generic characters: (1) the flagellum of antenna 2 in Notoprotomima is restricted to two articles even in mature males, while that in Pseudoprotomima varies from two to four articles; and (2) in Notoprotomima the third article of the mandibular palp has two to three large distal setae, while in Pseudoprotomima the setal formula is 1 – x – 1. The genus Symmetrella was established for Symmetrella arnaudi Laubitz, 1995 collected from bathyal depths, 2200 m, from the southern Indian Ocean (Laubitz 1995). The present new genus, Notoprotomima , differs from Symmetrella (see Laubitz 1995) in the following generic characters: (1) in Notoprotomima the third article of mandibular palp has two to three large distal setae, while in Symmetrella the setal formula is 1 – x – 1; (2) in Notoprotomima pereopod 4 is composed of seven articles, while Symmetrella lacks pereopod 4; and (3) in Notoprotomima the abdomen lacks pleopods, while in Symmetrella the abdomen possesses a pair of tiny pleopods. Hence, we establish the new genus, Notoprotomima , based on the present species. The description and figures for P. grandimana Guerra-García, 2004a (Guerra-García 2004a) agree well with the present species in the above generic diagnosis of Notoprotomima and P. grandimana is here moved to Notoprotomima . : Published as part of Takeuchi, Ichiro & Lowry, James K., 2015, A taxonomic study on the Phtisicidae (Crustacea: Amphipoda) of New South Wales, Australia, pp. 603-648 in Journal of Natural History 50 on pages 633-634, DOI: 10.1080/00222933.2015.1079338, http://zenodo.org/record/3985737 : {"references": ["Guerra-Garcia JM. 2004 a. The Caprellidea (Crustacea, Amphipoda) from Western Australia and Northern Territory, Australia. Hydrobiologia. 522: 1 - 74.", "McCain JC. 1969. New Zealand Caprellidae (Crustacea: Amphipoda). New Zeal J Mar Freshw Res. 3: 286 - 295.", "Laubitz DR. 1995. Caprellidea (Crustacea: Amphipoda) from the Southern and Western Indian Ocean. Mesogee. 54: 81 - 100.", "McCain JC, Gray WS. 1971. Antarctic and subantarctic Caprellidae (Crustacea: Amphipoda). Antarct Res Ser. 17: 111 - 139.", "Takeuchi I. 1993. Is the Caprellidea a monophyletic group? J Nat Hist. 27: 947 - 964."]}