Neotrypaea biffari ( Holthuis, 1991 )

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 133-134

Neotrypaea biffari ( Holthuis, 1991)

( Fig. 31G, Pl. 5C)

Callianassa affinis Holmes, 1900: 162 , pl. 2, figs. 29, 30. — Rathbun 1904: 154. — Schmitt 1921: 119, fig. 81. — Johnson &

Snook 1927: 330, fig. 277c. — Haig & Abbott 1980: 580, fig. 24.3. — Campos & de Campos 1989: 176. [Not Callianassa affinis A. Milne-Edwards, 1861 , fossil species]. Neotrypaea affinis . — Manning & Felder 1991: 771. — Jensen 1995: 78, fig, 159. Callianassa biffari . — Holthuis, 1991: 242, fig. 243. — Sakai 2005: 48, fig. 8. Neotrypaea biffari . — Campos-Gonzalez et al. 2009: 1249, figs. 2g,h; 3a, 4c. — Pernet et al. 2010: 324.

Diagnosis. Median tooth of front obscure. Eyestalk with tuberculiform extremity, not divergent, pigmented cornea in front of middle of eyestalk. Carapace smooth, with cervical, lateral grooves. Third maxilliped operculiform. Pereopods 1 unequal, chelate. Major chela of male with carpus shorter than to equal to palm, fingers crossing, without gape. Merus with large lobe near base. Small cheliped slender. Pereopod 2 chelate, posterior pereopods modified for digging. Abdominal pleura small. Male with vestigial first pleopods, second pleopods absent. Female with uniramous first pleopods, second pleopods biramous. Pleopods 3–5 biramous. Telson subrectangular, uropods about same length as telson. Male total length 61 mm, female not reported.

Color in life. Creamy white. The color note is from shrimp from Point Fermin, Los Angeles County, California; see also Jensen (1995).

Habitat and depth. Tide pools, in sand under rocks, intertidal zone.

Range. Goleta, Santa Barbara County to Tortugas Bay , Baja California, Mexico. Type locality Point Loma , San Diego County , California .

Remarks. This species usually occurs in pairs, often co-habiting its hole with the blind goby, Typhlogobius californiensis .