Planche 1 issued from : T.S. Park in Trans. Amer. Microsc. Soc., 1967, 86 (2). [p.145, Fig. 1].
Female (from Strait of Georgia): A-B, habitus (lateral and dorsal, respectively); C-D, posterior portion of body (ventral and lateral, respectively); E, A1; F, P1; G, P2; H, P3; I, P4; J, P5.

Nota: Cephalosome including the 1st metasomal segment about 1.5 times as long as the rest of the body; its surface is finely rigose. Prominent oral papilla located about halfway along the ventral side of the cephalosome. Posterior portion of the body, which consists of the 4 rear segments of the metasome plus the 3-segmented urosome, is progressively narrower posteriorly. Genital segment about as long as the combined length of the two following urosomal segments, and bears ventrally 2 ovigerous spiniform processes, which extend close to the end of the caudal setae; ventrally, it also bears a knob-like process in front of the ovigerous processes. Caudal rami bear 5 setae (2 lateral and 3 terminal, the 2nd lateral seta is short and about equal in length to the caudal ramus, the remaining 4 setae are equally long). A1 about 5/7 the length of the cephalosome including the 1st metasomal segment; it has only one articulation, by which a small proximal segment is separated from the rest of the appendage; none of the setae are dichotomously branched. P5 short and 1-segmented, each distally divided into 2 lobes, the outer lobe bears 2 subequal setae, but the inner lobe lacks setae.

Planche 2 issued from : T.S. Park in Trans. Amer. Microsc. Soc., 1967, 86 (2). [p.146, Fig.2].
Male: A-B, habitus (lateral and dorsal, respectively); C, posterior portion of body (lateral and ventral, respectively); E, A1.
Nota; Cephalosome including the 1st metasomal segment, slightly longer than the rest of the body, its surface finely rugose as in female. Genital segment bears ventrally a prominent genital protuberance with a pair of genital lappets, which have the structure of a chela, 3 urosomal segments follow the genital segment. Caudal rami similar to those of the female, but each has only 4 setae (2lateral and 2 terminal, the 2nd lateral seta short and equal in length to the caudal ramus as in the female). Both A1 geniculate, 5-segmented, with the knee-jpint between segment 4 and 5. The first 4 pairs of swimming legs are identical with those of the female. P5 consist of a pair of identical small lobes, each bearing distally 1 long seta.