560 ON TERRESTRIAL ISOPODS FROM TANGANYIKA. [May 26^ 



and stronger than the outer. Of the 9 sj)ines on the outer plate, 

 the two outermost are the stoutest, and then the next but one. 

 I do not find any of them bifid at the tij). The subapical 

 incurvation of the outer margin is finely setulose, as shown by 

 Budde-Lund. 



The second maxillee have the inner plate very small, as broad 

 as long, and strongly furred with very little setules ; the outer 

 plate membranaceous, broadly rounded, almost unarmed. 



The maxillipeds seem to agree well with Budde-Lund's figui'e. 

 The epipod, which he does not show, is lai'ge, reaching to the 

 distal end of the principal joint, or nearly so. 



That which appears to be the most characteristic feature of 

 the species (unless it be shared with P. trivialis) is found in the 

 uropods. Hei-e the peduncle is large and quadrate, obliquely 

 rounded off" at the distal outer angle, but having its minute outer 

 ramus inserted in and not jjrotruding beyond a little notch near 

 the distal inner angle. The inner ramus depending from an 

 upper arm of the peduncle does not reach its extremity or the 

 apex of the telson. 



The length about 7 mm. 



Locality. Under stones on beach, Birket el Qurun. 



EXPLANATION OF PLATE XXVIL 



A. Anchiphiloscia Tcaronga, n. g. et sp. 



n.s. Lines indicating natural size of specimen tigured in dorsal view. 

 a.i. Second antenna, vvitli further enlargement of setiform terminal portion 

 and its armature. 

 mx.l,mx.2,mxp. First and second maxilla? and maxilliped, with further enlarge- 

 ment of terminal portions. 

 gn. 1. First gnathopod. 

 urp., T. Uropod, and telsonic segment. 



B. Anchipliiloscia mmningtoni, n. g. et sp. 



n.s. Lines indicating natural size of specimen figured in dorsal view. 

 m.m., mx. 1, mxp. Mandibles, first maxilla, and maxilliped. 

 gn. 1. First gnathopod. 

 urp. Uropod. 



C. FeriscypMs conve.rws (Budde-Lund). 



Specimen in the centre figured in three-quarter dorsal view, without appendages. 



a.i. Second antenna. 

 mx. 2. Second maxilla. 

 urp. Uropod. 



T. Telsonic segment, with left uropod and part of fifth pleon segment. 



The mouth-organs throughout are figured on a higher scale than the 

 other appendages. 



