670 MH. E. J. MIERS ON A COLLECTION OF [JuDC 19, 



jelsMi. It agrees well with Philougria in the transverse front, in 

 which the median and antero-lateral lobes are obsolete, the subulated 

 flagella of the external antennae, and the exposed uropoda, which 

 have the inner ramus long, more than half the length of the outer. 



Philougria nitida, sp. n. (Plate LXIX. fig. 3.) 



Oblong-oval, shining, very convex ; segments closely articulated, 

 with minute scattered granules. Head transverse, with the anterior 

 margin straight, without antero-lateral lobes. Eyes black, granulated, 

 and extending along the whole length of the lateral margins. Seg- 

 ments of the body subequal, lateral margins with a raised marginal 

 line ; posterior margins of the first three segments straight, and 

 forming a right angle with the lateral margins ; last four segments 

 slightly excavate on the sides, postero-lateral angles acute. Third, 

 fourth, and fifth (exposed) segments of the tail with the lateral part 

 bent backward, almost at a right angle to the median portion of the 

 segment. Terminal segment much broader than long, obtusely tri- 

 angular, with a well-marked depression between the bases of the 

 uronoda («hich, however, is more conspicuous in some specimens 

 than in others). Antennee shorter than the body, very slender ; 

 flagellum three-jointed, and terminating in a long slender transparent 

 filament. Legs very slender, with short hairs on the last three 

 joints. Basal joints of the uropoda very short, terminal joint more 

 than three times as long as the basal joint, acute. Colour purplish- 

 brown ; with irregular yellow spots and patches. Length J inch, 

 breadth \ inch. 



Hab. Peru, Guiana. 



Distinguished by its convex, shining appearance, the form of the 

 head and of the terminal segment, and of the far longer slender 

 terminal filament of the flagella of the external antennae, from the 

 known species of the genus. 



The specimens from Guiana generally appear rather more coarsely 

 granulated. 



Subfamily Ligiin^. 

 LiGiA, Fabricius. 

 Ligia baudiniana? 



t Ligia baudiniana, Milne-Edw.' Hist. Nat. Crust, iii. p. 155 

 (1840). 



Hab Cayenne. 



As tbis species is only known to me by the short description of 

 Milne-Edwards in the ' Histoire naturelle des Crustaces,' I subjoin 

 the following description of the specimens from Cayenne. 



an opportunity of consulting Koeh's account of the German species of Oniscida, 

 either in his ' Continuation ' of Panzer's ' Deutschlands Insecten,' or in his 

 ' Deutschlands Crustaceeu.' 



Dr. von Martens (Zool. Record for 1868, p. 522), points out that the name 

 Philougria should be spelt Philygria. As, however, the term Philygria was 

 used in 1843 by Stenhammar for a genus of Dipterous insects, I retain the 

 designation Philovgria, albeit etymologically incorrect. 



