462 CRUSTACEA. 



tubercle-like spines and scattered hairs. Either the right or left hand 

 may be the larger, and the sexes often differ in this particular. The 

 acicle of the outer antennae is short, seldom exceeding half the length 

 of the eyes. The basal scale of the eyes is very small, much smaller 

 than in Pagurus. The eyes vary much in length, but are usually 

 slender ; sometimes they are nearly half longer than the breadth of 

 the carapax in front. 



As the specific name of a characteristic species, the Pagurus cliba- 

 narius, is here adopted for the name of the genus, this species may 

 be called the Clibanarius vulgaris. 



The Clibanarii are remarked upon as forming a distinct group by 

 De Haan (Faun. Japon., p. 210), yet he did not make them a separate 

 genus. 



The species may be arranged in two divisions, one having the 

 tarsus as long as the preceding joint or longer ; and the other having 

 it shorter. In the latter, the tarsus is often much compressed, and is 

 vertically much wider at base than at middle. 



1. Tarsus articulo pedum peniiltimo non brevior. 



CLIBANARIUS LINEATUS (Edwards), Dana. 

 Plate 29, fig. 2 a, animal, enlarged two diameters. 



Upolu, Samoan Islands, in shallow waters, along the coral reefs. 



Length, one and one-fourth inches. Eyes distinctly shorter than 

 front of carapax. Anterior region of carapax but slightly oblong. 

 Carpus and hands rough above with small, acute, spiniform tubercles, 

 and pilose. Eight hand a little the longer in both sexes. Legs of 

 second and third pairs moderately elongate, three narrow lines of 

 dark colour (red in dead specimen) on outer surface of fifth joint, and 

 five in all to this joint, with a few lax hairs on the surface, and 

 inferior margins not furnished with tufts of stiff hairs. Tarsus 

 as long as preceding joint, subterete ; two stripes of dark colour on its 

 outer surface. Outer surface of fifth joint of left leg of third pair con- 

 vex. Basal scale of eyes pointed and denticulate at apex. 



This species agrees quite closely with Edwards's description of his 



