ENACHIDAE. 05 



Perinea tumida Dana. 



Perinea tumida Dana, Crust. U. S. Expl. Exped., 1852, 1, 114; atlas, 1855, pi. 4, fig. 1 a f. 

 Fakarava Id., Paumotus ; outer reef; Oct. 12, 1899 ; 2 9 gravid. 



Schizophrys aspera (Milne Edwards). 

 Schizoptuys aspera Alcock, 1895, 64, 243. 



Funafuti, Elliee Ids. ; shore ; Dec. 25, 1899 ; 1 ? juv. 



Lophomicippa, gen. nov. 

 (X6(f>o<s, crest, in allusion to the legs ; Micippa, a generic name.) 



Carapace suboblong, high, rounded behind ; front broad, almost vertically 

 deflexed. Eye-stalks long, corneae lai'ge, oval, chiefly ventral in position; 

 eyes filling the orbits, the margins of which are for the most part entire, 

 the broad basal joint of the antenna bidentate. Antennae exposed, 2nd and 

 3rd joints small. 



Buccal cavity widened anteriorly. Merus of outer maxillipeds broader 

 than the ischium, its external angle expanded, and its internal angle notched 

 for the insertion of the palpus. 



Chelipeds of adult $ slender, feeble, shorter than the carapace. Legs 

 diminishing rapidly in length, the merus joints broadly expanded, forming 

 together a deep, continuous border around and below the sides of the cara- 

 pace and concealing the chelipeds. 



This genus unites the most striking characters of Micippa Leach ' of the 

 Indo-Pacific, and Hemus A. Milne Edwards 2 of tropical America. 



It has the carapace of the former and the legs of the latter. The orbits 

 of Micippa are more tubular, while the carapace of Hemus is strongly nar- 

 rowed in front and the second and third joints of the antennae are very 

 large. 



Type, and only species, 



Lophomicippa limbata, sp. nov. 



PI. 5, Fig. 3; PI. 6, Figs. 1-1 g. 

 Surface pubescent. 

 Carapace as wide as its superior length, narrowing a little anteriorly. 



Zool. Misc., 1817, 3, 15. 2 Miss. Sci. Mexique, Crust., 1875, 88. 



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