Ogyrides alphaerostris ( Kingsley, 1880 )

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 96

Ogyrides alphaerostris ( Kingsley, 1880)

( Fig. 24A)

Ogyris alphaerostris Kingsley, 1880: 420 , pl. 14, fig. 7.

Ogyrides alphaerostris . — Williams 1981:144; 1984: 107, fig. 74 (extensive synonymy). — Carvacho & Olson 1984: 66, figs. 3 4. — Hendrickx & Wicksten 1987: 17. — Wicksten & Méndez 1988: 624. — Wicksten & Hendrickx 2003: 68.

Diagnosis. Rostrum short, depressed, triangular, postrostral carina with 8–14 dorsal teeth flanked by row of setae on each side. Carapace with pterygostomian area obtuse. Eyestalk exceeding antennular peduncle by up to 2.5 times corneal length. Second segment of antennular peduncle longest, stylocerite with 2 strong terminal teeth, not exceeding first article of antennular peduncle. Scaphocerite rounded, not reaching end of antennular peduncle. Pereopod 1 chelate, fingers gaping when closed. Carpus of pereopod 2 with 4 articles. Pereopods 3–5 slender, single spine on ischium, merus each of pereopod 3. Abdominal pleura rounded to obtuse. Telson with pair lateral spines posterior to lateral prominences. Female total length 16 mm, male not reported.

Color in life. Mostly colorless, small red, yellow spots on appendages, eyestalk; red spots on uropods, sixth abdominal somite. The color notes are from a shrimp from Port Aransas, Texas.

Habitat. Mud, fine sand to gravel, but usually in very fine sand mixed with silt or clay; mostly in subtidal areas, to 28 m.

Range. Virginia to Brazil; southern California and western Mexico. Type locality Northampton County, Virginia .

Remarks. Specimens from southern California were taken off Huntington Beach at 26–28 m on sand. Other specimens have been collected off Ventura County. Most specimens from western Mexico were collected in Van Veen grabs, suggesting that the species digs into the substrate. Questions remain as to whether populations in the Atlantic and Pacific are genetically distinct and therefore constitute separate species.