Plate 1 Issued from : J.M. Bradford-Grieve, L. Blanco-Bercial & G.A. Boxshall in Zootaxa, 2017, 4229 (1). [p.116, Fig.74].
Female (from 38.033°N, 124.183°W): A-B, habitus (dorsal and lateral, respectively); C, forehead (lateral); D, posterior lappet of pedigerous somite 5 (right lateral view); E, detail of lateral left posterior lappet of pedigerous somite 5; F, caudal ramus (dorsal); G, P1 (anterior view).
Scale bars: 1.0 mm (A, B, D, E, G); 0.1 mm (C, F).

Nota:
- Whole body covered in small pustules easily observed in profile.
- Forehead in dorsal view produced into distinct short rounded projection located dorsal to base of rostrum and bearing pair of stout small spine-like processes.
- Posterolateral corners of pediger 5, in lateral view, produced into left rectangular and right rounded, asymmetrical lappets extending half way along genital double-somite in dorsal view.
- Genital double-somite symmetrical in dorsal view, about as wide as long, widest at midlength, with small genital operculum anteriorly situated, seminal receptacles not observed.
- A1 broken off.
- P1 exopod with articulation between exopodal segments 2 and 3 well-developed.

Plate 2 Issued from : J.M. Bradford-Grieve, L. Blanco-Bercial & G.A. Boxshall in Zootaxa, 2017, 4229 (1). [p.117, Fig.75].
Female: A, A2; B, proximal part of exopod of A2 (from another view); C, Md palp; D, Md gnathobase; E, Mx1; F, coxal endite (C) and basal endite 1 (B1) of Mx1; G, Mx2; H, terminal part of Mx2; I, Mxp.
Scale bars: 1.0 mm (G, I); 0.1 mm on remaining figures.

Nota:
- A2 exopod segment IV with short setae not extendind as far as distal border of segment VII and bearing short setules.
- Mx1 praecoxal arthrite with 13 setae including 2 on posterior surface and 2 setae on anterior surface, one of them very small; coxal endite with 1 seta; basal endites 1 and 2 with 2 subequal setae each; endoppod segments with 2 (subequal), 2 (subequal), 5+1 anterior surface seta, respectively.
- Mxp syncoxal endite 4 with longest toothed seta extending beyond distal border of endopodal segment 2.

Plate 3 Issued from : J.M. Bradford-Grieve, L. Blanco-Bercial & G.A. Boxshall in Zootaxa, 2017, 4229 (1). [p.118, Fig.76].
Female: A, P2; B, P3; C, P4; D, P5. (all legs from anterior view).

Plate 4 Issued from : J.M. Bradford-Grieve, L. Blanco-Bercial & G.A. Boxshall in Zootaxa, 2017, 4229 (1). [p.91, Table 10].
Morphological characters after identification key of Bathycalanus females and males.
Compare to other species of genus.

Main characters identification after species key:
1 - mx1 coxal endite with 1 seta .... 2.
2 - Mx1 praecoxal arthrite with 2 posterior surface setae; basal endite 2 with 2 setae (male unknown).