!9 21 ] Schmitt: The Marine Decapod Crustacea of California 75 



Characters. — Merus joints of third and fourth pairs of legs with a spine below 

 at the inferodistal angle. Front trispinose; rostrum present and orbital hoods 

 each armed with a spine; a sulcus between the eye-shields and the rostrum. 

 Large hand sculptured, dactyl closing horizontally; small hand with a superior 

 spine above the articulation of the dactyl only, no external spine. Basal spine 

 of antennules shorter than first joint of peduncle. Carpus of second pair of legs 

 with first and second segments equal. 



Dimensions. — Length of an ovigerous female in the collection of the U. S. 

 National Museum from tip of rostrum to end of telson 35 mm. ; length of carapace 

 and rostrum 11 mm. ; length of large hand 19 mm. 



Color. — In alcohol a light flesh tint, much deeper on the large hand. A darker 

 spot on the upper surface of the carapace, also on the anterior edge of the first 

 two abdominal segments (Lockington). 



Type Locality. — "Sapience, et au cap Tenare; golfe de Genes" (Guerin). 



Disti'ibuiion. — Farallon Islands, California, to San Bartholome Bay, Lower 

 California. Mediterranean; Cape Verde Islands; Bermudas; Porto Bico; Cuba; 

 Key West (Bathbun). 



Remarks. — This species lives in pools on rocky reefs at low tide level, and is 

 capable of producing, by clapping together the fingers of the larger hand, a 

 snapping noise like that which can be made with the finger nail (Lockington). 

 Common in sponge masses and kelp holdfasts (Baker). 



Crangon bellimanus (Lockington) 



Alpheus bellimanus Lockington, Proc. Calif. Acad. Sci., 7, 34, 1877; Holmes, 

 Occas. Papers Calif. Acad. Sci, 7, 184, pi. 2, fig. 41, 1900; Bathbun, 

 H. A. E., 10, 108, 1904. 



Fig. 51. Crangon bellimanus, large hand (after Holmes). 



Characters. — Front trispinose; rostrum present and orbital hoods each armed 

 with a spine ; no sulcus between eye-shields and rostrum. Large hand sculptured, 

 dactyl laminate, closing horizontally. Small hand with a superior spine on upper 

 margin at articulation of dactyl and an external spine on outer surface at base 

 of dactyl. Basal spine of antennules short, not reaching second joint of peduncle. 

 Carpus of second pair of legs with first segment about as long as the next two 

 combined. 



Dimensions. — Type: length from point of rostrum to end of abdomen 30.3 mm.; 

 length of larger hand 12.7 mm., of smaller 9.7 mm. 



Color. — The present species may be easily recognized by the beautiful color- 

 ing of its hands, which in a dried specimen are orange, with various spots and 

 workings of black and white. The carapace presents similar coloration to that 

 of the hands (Lockington). 



Type Locality. — San Diego, California, found among the kelp. 



Distribution. — From Monterey to San Diego, California (Bathbun) ; Chile 

 (Coutiere). 



