Neopleustes columbianus Hendrycks & Bousfield, 2004

Labay, Vjacheslav S., 2021, Review of amphipods of the family Pleustidae Buchholz, 1874 (Crustacea Amphipoda) from the coastal waters of Sakhalin Island (Far East of Russia). I. Subfamily Neopleustinae Bousfield & Hendrycks, 1994, Zootaxa 4974 (2), pp. 267-306 : 295

Neopleustes columbianus Hendrycks & Bousfield, 2004

Figures 1d , 2d, k, r, z , 3c , 4d , 5d , 22

Neopleustes columbianus Hendrycks & Bousfield, 2004: 96–98 , fig 27.

Paramphithoe pulchella ( Krøyer, 1845) (?)—Holmes 1904: 489, pl. 8, fig. 1.

Distribution: Known from Pacific coast of Northern America from South-Eastern Alaska to southern British Columbia in depth range of 7–71 m on mud ( Hendrycks & Bousfield 2004).

Remarks. Perhaps this species includes individuals from the north-eastern coast of North America (Grand Manan Island, Fundy Bay), which were identified by Holmes (1904) as Paramphithoe pulchella ( Krøyer, 1845) . Exemplars from Fundy Bay are close in morphology to N. columbianus (especially in dorsal carination) (Holmes, 1904: pl. 8, fig. 1), but differ from the typical description of Krøyer (1845) and Sars (1895) ( Fig. 18 ). However, the lack of own description in Holmes (1904) does not allow us to precisely state this.

Figures

FIGURE 1. Neopleustinae Bousfield & Hendrycks, 1994, lateral view: a—Neopleustes boecki boecki (Hansen, 1888) (from Sars 1895: pl. 122), b—N. boecki pacifica ssp. nov., c—N. carinatus Margulis, 1963 (original image by author), d—N. columbianus Hendrycks & Bousfield, 2004 (from Hendrycks & Bousfield 2004: fig. 27), e—N. euacanthoides Gurjanova, 1972 (modified from Gurjanova 1972: fig. 18), f—N. euacanthus (G. Sars, 1876) (modified from Sars 1885: Pl. 14), g—N. kussakini (Budnikova, 1995) (modified from Budnikova 1995), h—N. pulchellus pulchellus (Krøyer, 1846) (from Sars 1895: pl. 122), i—N. pulchellus asiaticus ssp. nov., j—Shoemakeroides cornigerus (Shoemaker, 1964) (modified from Shoemaker 1964: fig. 9), k—Sh. gagarae (Gurjanova, 1972) (from Gurjanova 1972: fig. 16), l—Hendrycksopleustes neimanii sp. nov.

FIGURE 2. Neopleustinae Bousfield & Hendrycks, 1994, mouthparts: a–o—mandible; p–w—maxilla 1; x–ae—maxilla 2; a—Neopleustes boecki boecki (Hansen, 1888) (from Sars 1895: pl. 122), b, i, p, x—N. boecki pacifica ssp. nov., c, j, q, y—N. carinatus Margulis, 1963 (original image by author), d, k, r, z—N. columbianus Hendrycks & Bousfield, 2004 (from Hendrycks & Bousfield 2004: fig. 27), e, l, s, aa—N. pulchellus pulchellus (Krøyer, 1846) (from Sars 1895: pl. 122), f, m, t, ab—N. pulchellus asiaticus ssp. nov., u, ac—Shoemakeroides cornigerus (Shoemaker, 1964) (from Hendrycks & Bousfield 2004: fig. 30), g, m, v, ad—Sh. gagarae (Gurjanova, 1972) (from Gurjanova 1972: fig. 16), h, n, w, ae—Hendrycksopleustes neimanii sp. nov.

FIGURE 3. Neopleustinae Bousfield & Hendrycks, 1994, mouthparts: maxilliped; a—Neopleustes boecki pacifica ssp. nov., b—N. carinatus Margulis, 1963 (original image by author), c—N. columbianus Hendrycks & Bousfield, 2004 (from Hendrycks & Bousfield 2004: fig. 27), d—N. pulchellus pulchellus (Krøyer, 1846) (from Sars 1895: pl. 122), e—N. pulchellus asiaticus ssp. nov., f—Shoemakeroides cornigerus (Shoemaker, 1964) (modified from Shoemaker 1964: fig. 9), g—Sh. gagarae (Gurjanova, 1972) (from Gurjanova 1972: fig. 16), h—Hendrycksopleustes neimanii sp. nov.

FIGURE 4. Neopleustinae Bousfield & Hendrycks, 1994, pereopod 1 (gnathopod 1): a—Neopleustes boecki boecki (Hansen, 1888) (from Sars 1895: pl. 122), b—N. boecki pacifica ssp. nov., c—N. carinatus Margulis, 1963 (original image by author), d—N. columbianus Hendrycks & Bousfield, 2004 (from Hendrycks & Bousfield 2004: fig. 27), e—N. euacanthoides Gurjanova, 1972 (modified from Gurjanova 1972: fig. 19), f—N. euacanthus (G. Sars, 1876) (modified from Sars 1885: Pl. 14), g—N. kussakini (Budnikova, 1995) (modified from Budnikova 1995), h—N. pulchellus pulchellus (Krøyer, 1846) (from Sars 1895: pl. 122), i—N. pulchellus asiaticus ssp. nov., j—Shoemakeroides cornigerus (Shoemaker, 1964) (modified from Shoemaker 1964: fig. 9), k—Sh. gagarae (Gurjanova, 1972) (from Gurjanova 1972: fig. 17), l—Hendrycksopleustes neimanii sp. nov.

FIGURE 5. Neopleustinae Bousfield & Hendrycks, 1994, pereopod 2 (gnathopod 2): a—Neopleustes boecki boecki (Hansen, 1888) (from Sars 1895: pl. 122), b—N. boecki pacifica ssp. nov., c—N. carinatus Margulis, 1963 (original image by author), d—N. columbianus Hendrycks & Bousfield, 2004 (from Hendrycks & Bousfield 2004: fig. 27), e—N. euacanthoides Gurjanova, 1972 (modified from Gurjanova 1972: fig. 19), f—N. kussakini (Budnikova, 1995) (modified from Budnikova 1995), g—N. pulchellus pulchellus (Krøyer, 1846) (from Sars 1895: pl. 122), h—N. pulchellus asiaticus ssp. nov., i—Shoemakeroides cornigerus (Shoemaker, 1964) (modified from Shoemaker 1964: fig. 9), j—Sh. gagarae (Gurjanova, 1972) (from Gurjanova 1972: fig. 17), k—Hendrycksopleustes neimanii sp. nov.

FIGURE 18. Neopleustes aff. columbianus Hendrycks & Bousfield, 2004 (=Paramphithoe pulchella (Krøyer, 1845) (?)) from the coast of Grand Manan Island, Fundy Bay (after Holmes 1904).

FIGURE 22. Distribution of Neopleustinae species