r>7g CRUSTACEA. 



Coral Reefs of Ovalau, Feejee Archipelago. 



Length of carapax, three lines ; breadth between tips of lateral 

 spines, six and three-fourths lines; breadth just posterior to the spines, 

 three and a half lines ; length of spines, one and a half lines ; length 

 of hand, three lines. The second, third, and fourth pairs of legs are 

 very slender. The third joint of the outer maxillipeds is oblong, but 

 nearly flat to its anterior margin, yet somewhat obliquely curved in 

 its anterior part. The length of the male abdomen is much less than 

 its breadth at base. 



De Haan's Amphitrite liastaioides (F. Jap., PI. 1, f. 3), and A. tennvpes 

 (PI. 1, f. 4) have no spines on the upper side of the hand. 



AMrillTKITE VIGILAXS. 



Carapax areolatus, paulo trmisverms, gi'amdatus, sjrind hiferali fere 

 triph breviore quam latitudo carajxicis, detiribus jno-rulis antero-late- 

 ralibus sex (angido orbiice excluso), qwxtuor iHtsferioribtt^ duafais anteri- 

 oribus; fronts 4,-dentato, dentibm 2 mediatrix minutis, cjckrioribus 

 prominenter triangidatis. Pcde* a ///id mediocre*, waitu fmpernb 

 3-spinosa, carpo 2-splnoso, bmc7tio apticem externum uni-itjriHosOj mar- 

 ginem anticum k-spinoso. 



Carapax areolate, somewhat transverse, granulate; length of lateral 

 spine about one-third the breadth of the carapax, the small antero- 

 lateral teeth six in number, in two sets, four posterior and two an- 

 terior; front four-dentate, two inner teeth minute, outer prominent 

 triangular. Anterior feet of moderate size, hand with throe spines 

 above, arm with one spine at outer apex and four on the inner 



Plate 17, fig. 3 a, part of a male, enlarged two diameters ; b, male 

 abdomen; c, outer maxillipeds; d, summit of inner branch of first 

 maxillipeds. 



Feejee Archipelago ; also, Sandwich Islands. 



Length of carapax, seven lines; breadth between tips of long 



