CRUSTACEA. 



90 



prolonged and subacute. The pterygostomian region has its border 



strongly and irregularly dentate. The exterior nmxdhpeds have he 

 anterior margin of the third joint entire and not notched, with the 

 outline rounded. 



Libidoclea coccinea, Dana, Silliman's Am. J. Sci., 2d Ser., xi. 268. 



Subfamily MICIPPIN^. 



MlCirPA II1RTIPES. 



Carapax minute pustulatus, marghiibus lateraUbus irreyuhtriter paulo 

 inciso-dentatis ; rostro fere verticali, sub-palygonato, juxta antennam 

 externum profimde constricto, apice triangulate emarginato, mperficii 

 seriatim pustulata, pustulw setigeris. OcuU longd exwrtL ftdes 



Jiirsuti. 



Carapax minutely pustulate, wholly without spines, lateral margins ir- 

 regularly small inciso-dentate; beak nearly vertical. sub-polygonate. 

 adjoining outer antennae deeply notched, and triangularly emarginate 

 at apex, surface seriately pustulate, and pustules setigerous. Eyes 



long exsert. Feet hirsute. 



Plate 1, fig. 4 a, female, enlarged two diameters; />, front view of 

 beak, enlarged four diameters; c, female abdomen; </. under view of 

 head ; e, hand of female. 



Eeef of the Island of Tongatabu, Pacific. 



Length of carapax, seven lines; greatest breadth (across the cardiac 

 region), six lines; post-orbital breadth, five and one-third lines: 

 greatest breadth of beak, three lines. 



The eyes project from a large rectangular emargination of the 

 lateral margin, and the length of the eyes exposed in an upper view, 

 is equal to nearly three times the diameter of the peduncle. Poste- 

 rior to the eyes, there are four or five irregular teeth, and the rest of 

 the margin is uneven. The surface of the beak, either side of the 



