neio Terrestrial Isopod. 429 



common, and as tlie species is apparently new I find much 

 pleasure in naming it in lionour of my good friend Mr. 

 Alexander Patience, whose name is already familiar to those 

 interested in the study of our trrrestrial Isopod Crustacea. 



Mr. Patience has very carefully dissected tiie species (some 

 females of which were bearing ova) and figured it, and my 

 sincere thanks are due to him for the invaluable help he has 

 given nie in preparing the present short paper. 



Genus PiilLOSClA, Latreille, 180:i. 

 Philoscia jyatiencei, sp. n. 



Lenrjth of adult male and female 3 mm. ; greatest breadtii 

 about 1*2 mm. 



Colour of the living animal more or less violaceous brown, 

 marbled with M'liite, and with a broken white median band 

 along the back of niesosome. 



Body elongate-ovate in form, about two and a half times as 

 long as broad ; dorsal face moderately convex, quite smooth 

 and polished. Lateral parts of the three posterior segments 

 of mesosome rounded and acuminate. Metasome abruptly 

 contracted, about one-fourth the length of body, the lateral 

 parts of third to fifth segments adpressed and acuminate, the 

 last segment with the terminal expansion broadly rounded 

 at the tip and carrying two spicules, the sides very slightly 

 insinuate. Leija in both sexes a})parently similar in structure. 



Cep/talun with the frontal margin evenly rounded. J^i/es 

 comparatively large and convex. Antennulce with the last 

 joint subequal in length to the penultimate and carrying three 

 sensory filaments. Antennce densely spinulose, more than 

 one-tiiird the length of body, the last joint not so long as the 

 preceding two together ; fafjellum com])osed of three articu- 

 lations, the last being the longest and terminating in a long 

 stiff bristle. 



Uropoda with the outer ramus lanceolate, not twice the 

 length of basal i)art, carrying three strong spines on inner 

 edge, several small spines on outer edge, and tipped by five 

 strong and comparatively long bristles. Inner ramus origi- 

 nating at sonie distance from and about one half tlie length of 

 the outer ramus, broadly exposed when viewed laterally, and 

 carrying three stifi' bristles which are subequal in length to 

 the ramus. Tlie inner edge is densely ciliated, with the 

 hairs curled upwards, but spare on each edge towards the 

 distal end. 



Iieinarks. — At lirst sight this [irotty little creature might 



