Epialtoides hiltoni ( Rathbun, 1923 )

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 208

publication ID

1175­5334

persistent identifier

https://treatment.plazi.org/id/C5657B52-FF53-B3DC-44D1-FF17CAD50F0A

treatment provided by

Felipe

scientific name

Epialtoides hiltoni ( Rathbun, 1923 )
status

 

Epialtoides hiltoni ( Rathbun, 1923) View in CoL

( Fig. 49A, B)

Epialtus bituberculatus Rathbun, 1894: 67 View in CoL (part). — Schmitt 1921: 203 (not text fig. 126). [Not Epialtus bituberculatus View in CoL Milne-

Edwards, 1834, western Atlantic species]. Epialtus hiltoni Rathbun, 1923: 72 View in CoL ; 1925: 156, pl. 46, figs. 1 2; text figs. 53 m, n. Epialtoides hiltoni View in CoL . — Garth 1958: 234, pl. O, fig. 7; pl. 26, fig. 33. — Garth & Abbott 1980: 597, fig. 25.2. — Jensen 1995: 25, fig.

25.—Hendrickx 1999: 93, fig. 53.

Diagnosis. Rostrum oblong, apex bilobed; deeply emarginate in young animals. Carapace high in median region, lateral wings broad, ascending, anterior lobe larger, intervening sinus deep. Posterior margin of hepatic lobe convex. Preorbital tooth outstanding, postorbital tooth inconspicuous. Male chelipeds of moderate size, merus bluntly angled, carpus, manus with subacute outer carina, tubercle on upper surface of carpus, outer margin of fingers with carina, large tooth on dactyl within narrow gape. Female with less massive cheliped, merus, manus foreshortened. Pereopods 2–5 rather stout, 2 tubercles on lower margin of merus of first leg, dactyls with spinules. Male, female with 5 free abdominal segments. Male carapace length 17.3 mm, width 15.7 mm; female 10.7 mm, width 9.6 mm.

Color in life. Camouflaged like brown algae; brown, olive, mottled with dark brown or cream. The color notes are from crabs from Santa Catalina I.

Habitat and depth. Among low-growing algae, in kelp holdfasts of among surf grasses ( Phyllospadix spp. ), intertidal zone to 5 m.

Range. Santa Catalina I. , California to Magdalena Bay, Baja California . Type locality Laguna Beach, California .

Remarks. Epialtoides hiltoni may attach bits of algae to its rostrum. This crab may be abundant, but its small size and cryptic coloration render it inconspicuous.

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Epialtidae

Genus

Epialtoides

Loc

Epialtoides hiltoni ( Rathbun, 1923 )

Wicksten, Mary K. 2012
2012
Loc

Epialtus bituberculatus

Schmitt, W. L. 1921: 203
Rathbun, M. J. 1894: 67
1894
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