The Sympoda. 167 



The uropods have about thirty spinules or denticles on each of 

 three edges of the peduncle, which is twice as long as the endopod. 

 The latter has six good-sized spines along its serrate inner margin, 

 some submarginal spinules, and a very long apical spine. The 

 exopod, about four-fifths as long as the endopod, has a fairly long 

 apical spine, but is otherwise slightly armed. 



The length of the single specimen, a male, is about 2'5 mm., thus 

 being, although so small, considerably larger than any of the three 

 species of the genus previously described. The specific name is 

 given out of respect to Dr. Caiman, who instituted the genus. 



Locality. Cape Natal distant N. by E. 24 miles; depth 805 m. ; 

 No. 12605, sent by Dr. Peringuev. 



FAMILY PROCAMPYLASPIM], n. 



Telson wanting ; no distinct eye ; first antenna with accessory 

 flagellum very small ; mandible with narrow molar ; second maxilla 

 normal ; first maxilliped with seventh joint small, unexpanded ; 

 second maxilliped with strong teeth projecting from inner margin 

 of the terminal joint ; exopods on first four pairs of pera^opods of 

 male, only on first two of female ; no pleopods in either sex; inner 

 branch of uropods simple. 



GEN. PEOCAMPYLASPIS, Bonnier. 



1896. Procampylaspis, Bonnier, Ann. Univ. Lyon, vol. xxvi., p. 541. 

 1900. P., Stebbing, Willey's Zool. Results, pt. 5, p. 611. 



This being at present the only genus, will have the characters of 

 the family. In addition to the new species P. tridentatus, it con- 

 tains P. armatus, Bonnier, 1896, with P. echinatus, Bonnier, of the 

 same date, by Caiman held to be a synonym of the preceding 

 species ; P. bonnier/', Caiman, 1906, and P. compressus, Zimmer, 

 1907, briefly described without illustrative figures. 



PitOCAMPYLASPIS TRIDENTATUS, n. Sp. 



Plate LXII. 



This genus is specially remarkable for the form of the last joint 

 in the second maxillipeds. In the forms described by Bonnier as 

 P. armatus and P. echinatus, which are considered by Caiman to be 

 one and the same species, this joint has in addition to its terminal 



