Mr. E. J. Miers on new Species of Crustacea. 225 



This species seems to be allied to A. gracilipes, Stm., from 

 Tahiti, Avhich, however, has the larger hand straight and the 

 orbits acute in front, 



Idotea elongata. Type, B.M. 



Idotea elongata, List Crust. Brit. Mus. p. 95 (1847), sine descr. 



Elongate, linear, regularlj rounded so as to appear cylin- 

 drical from above. Segments of pereion longer than broad, 

 with the epimeral pieces in a lateral view very narrow-linear, 

 and coalescent with the segments, the lines of union indicated 

 by sutures on the sides ; beneath greatly developed and sheath- 

 ing the base of the legs. Head usually coalescent with the 

 first segment of the pereion. Antennae as in /. affinis, thefla- 

 geila about 22-jointed. Terminal segment of the pleon with 

 a rather deep rounded excavation at its extremity, and with 

 the latero-posterior angles rounded. 



Length If inch, breadth not quite | inch. 



Hah. Auckland Islands. 



Distinguished by its very narrow convex body, with long 

 segments and very narrow epimera, which are linear in a 

 lateral view. 



Armadillo laconspicuus^ n. sp. Type, B.M. 



Convex, with the sides parallel, very finely and closely 

 punctate. Head transverse ; eyes small. Posterior margins 

 of the segments of the pereion straight ; first segment broadest, 

 lateral margins with a groove for the reception of the second 

 segment when the animal is rolled up ; following segments 

 of about equal width, sides rounded. Segments of the pleon 

 very short and closely applied to one another, sides truncate ; 

 terminal segment very little broader at the base than at the 

 extremity, sides concave. Terminal (lateral) joint of the 

 pleonal apj^endages minute ; basal produced portion of the 

 penultimate joint rounded, not rectangular. The antennae 

 are imperfect. 



Length ,-V inch. 



Hah. New Zealand. 



Distinguished by the punctulations of the thorax and the 

 form of the terminal segment and caudal appendages. 



Cuharis rugulosus, n. sp. Type, B.M. 



Moderately convex, rather loosely articulated ; surface of 



the segments uneven, faintly rugose. Head very broad and 



transverse, front margin revolute. First segment of the pereion 



with two slight depressions diverging anteriorly on the upper 



