Lepechinella occlo J. L. Barnard 1973

“Lepechinella occlo, new species

Diagnosis—Anterior dorsal teeth one-fifth length of coxa 2, posterior teeth one-half length of coxa 2; pereonite 1 with two teeth, pereonite 2 to pleonite 4 with one main tooth, accessory teeth composed of very low hump on pereonites 4—6, two humps on pereonite 7 to pleonite 3; body sparsely covered with long setal spines; epimera 1—3 with convex posterior margin, each with medium, sharp posteroventral tooth, each with row of lateral setae; rostrum thin, extending along 40 percent of article 1 on antenna 1, first cephalic tooth 67 percent as long as rostrum, second tooth 75 percent as long as rostrum; article 3 of mandibular palp twice as long as article 1, article 2 twice as long as article 3; coxa 1 slipper-shaped, weakly bifid, coxae 2—4 with weak anterior bulge, coxa 2 broad, slightly shorter than coxa 1, abruptly tapering apically but narrowly bifid, coxa 3 extending as far as coxa 2, asymmetrically and sharply bifid, coxa 4 weakly and sharply bifid, coxa 5 with long sharp anterior lobe as long as coxa 4, coxa 6 with weak anterior lobe, rounded posteroventrally, coxa 7 with sharp, curved posteroventral cusp; accessory flagellum scarcely longer than broad, 1—articulate; telson cleft twothirds, lobes thin, long, gaping but apposing margins straight, each lobe with one long apical spine-seta; inner ramus of uropod 1 reaching 75 percent along outer ramus; outer ramus of uropod 2 slightly shorter than inner ramus; inner ramus of uropod 3 scarcely shorter than outer ramus. Juvenile, smallest, 3.8 mm long: Rostrum short and not exceeding cephalic teeth, head with only 13 spines from lateral view (compare adult figure), coxa 1 strongly subbifid; article 2 of gnathopod 1 not strongly expanded distoposteriorly; epimera 2-3 each with only two setae in setal row; anterior pereonal teeth shortened, but remaining teeth as well developed as in adult; tooth on pleonite 6 absent.

Holotype—NZOI, ?male, 9.6 mm.

Type-locality—NZOI F755, southeast of Kaikoura, New Zealand, 43°OO'S, 174°30'E, 721 m, 19 August 1966.

Material—NZOI E417 (3), F753 (5), F755 (14).

Distribution—Off east coast, South Island, New Zealand, 721-860 m.”

(Barnard, 1973: 21)

Lepechinella occlo

DIAGNOSIS.–Anterior dorsal teeth one-fifth length of coxa 2, posterior teeth one-half length of coxa 2; pereonite 1 with two teeth, pereonite 2 to pleonite 4 with one main tooth, accessory teeth composed of very low hump on pereonites 4–6, two humps on pereonite 7 to pleonite 3; body sparsely covered with long setal spines; epimera 1–3 with convex posterior margin, each with medium, sharp posteroventral tooth, each with row of lateral setae; rostrum thin, extending along 40 percent of article 1 on antenna 1, first cephalic tooth 67 percent as long as rostrum, second tooth 75 percent as long as rostrum; article 3 of mandibular palp twice as long as article 1, article 2 twice as long as article 3; coxa 1 slipper-shaped, weakly bifid, coxae 2–4 with weak anterior bulge, coxa 2 broad, slightly shorter than coxa 1, abruptly tapering apically but narrowly bifid, coxa 3 extending as far as coxa 2, asymmetrically and sharply bifid, coxa 4 weakly and sharply bifid, coxa 5 with long sharp anterior lobe as long as coxa 4, coxa 6 with weak anterior lobe, rounded posteroventrally, coxa 7 with sharp, curved posteroventral cusp; accessory flagellum scarcely longer than broad, 1–articulate; telson cleft two-thirds, lobes thin, long, gaping but apposing margins straight, each lobe with one long apical spine-seta; inner ramus of uropod 1 reaching 75 percent along outer ramus; outer ramus of uropod 2 slightly shorter than inner ramus; inner ramus of uropod 3 scarcely shorter than outer ramus.

Juvenile, smallest, 3.8 mm long: Rostrum short and not exceeding cephalic teeth, head with only 13 spines from lateral view (compare adult figure), coxa 1 strongly subbifid; article 2 of gnathopod 1 not strongly expanded distoposteriorly; epimera 2–3 each with only two setae in setal row; anterior pereonal teeth shortened, but remaining teeth as well developed as in adult; tooth on pleonite 6 absent.

HOLOTYPE.–NZOI, ?male, 9.6 mm.

TYPE-LOCALITY.–NZOI F755, southeast of Kaikoura, New Zealand, 43°00′S, 174°30′E, 721 m, 19 August 1966.

MATERIAL.–NZOI E417 (3), F753 (5), F755 (14).

DISTRIBUTION.–Off east coast, South Island, New Zealand, 721–860 m.