Pandalus danae Stimpson, 1857

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 100-101

Pandalus danae Stimpson, 1857

( Fig. 25C–E, Pl. 4 C)

Pandalus danae Stimpson, 1857a: 87 . — Holmes 1900: 209, pl. 4, figs. 61–62. — Rathbun 1904: 47, fig. 13. — Schmitt 1921: 44, fig. 25, pl. 13, fig. 3. — Johnson & Snook 1927: 302, fig. 257 a, c. — MacGinitie & MacGinitie 1968: 272. — Kozloff 1974: 163. — Word & Charwat 1976: 179. — Butler 1980: 147. pl. 4A. — Ricketts et al. 1985: 352. — Jensen & Armstrong 1987: 216. — Wicksten 1991: 812. — Jensen 1995: 53, fig. 98. — Kuris et al. 2007: 637.

Pandalus gurneyi Stimpson, 1871: 128 . — Rathbun 1904: 50. — Schmitt 1921: 46, pl. 13, fig. 1. — Johnson & Snook 1927: 303, fig. 257b. — Word & Charwat 1976: 181. — Hendrickx & Wicksten 1989: 83, fig. 8C, D.

Pandalus franciscorum Kingsley, 1878b: 94 .

Diagnosis. Rostrum 1.0–1.6 times as long as carapace, nearly straight to sharply upcurved, with 10–15 dorsal teeth, spines; 6–12 ventral teeth, apex trifid. Eye large. Stylocerite of first antennae short, flagella shorter than carapace. Scaphocerite narrow, lateral tooth exceeding blade, flagellum about equal to body length. Carapace with antennal, pterygostomian teeth. Third maxilliped without exopod but with epipod. Pereopods 1–4 with epipods. Pereopod 1 slender, chelate; ischium with slight lamina. Pereopods 2 unequal, left with about 60 carpal articles, right with 18–21 articles, epipods on pereopods 1–4. Pereopods 3–5 slender, margins spinulose, with 6–9 meral spines. Dorsal posterior margin of abdominal somite 3 slightly produced. Pleuron of somite 4 with weak posterolateral point, pleuron of somite 5 with strong posterolateral point. Somite 6 shorter than telson. Telson with 5 or 6 pairs dorsolateral spines, 2 pair terminal spines. Male total length to 123 mm, female to 140 mm.

Color in life. Background translucent, marked with irregular striping, spots of brick red or chocolate brown, with fine brick-red dots between stripes. Fine blue spots on cardiac region of carapace. Antennae and appendages marked with striking bands of white, yellow, red or brown ( Butler 1980, color plate 4A; Wicksten 1991).

Habitat and depth. Sea grass beds, rocky reefs, mixed shell, sand; lowest intertidal zone to 185 m.

Range. Black Hills, north side of Alaskan Peninsula, Alaska to San Quintin Bay , Baja California. Type locality Puget Sound .

Remarks. These shrimp often are seen in cracks or near rocks during the day, where they may rest upside down. The long, banded antennae are conspicuous. These shrimp will pick at a diver's equipment or even a gloved hand, but do not show any obvious quivering of the antennae or waving the body, as is seen in tropical cleaner shrimps of the genus Lysmata ( Wicksten 2009) .

Confusion remains as to whether or not P. danae and P. gurneyi are separate species.