froTtx the Chinese Seas. 363 



Suborder I u l o i d i: a. 



Family Cambalidae. 



In vol. xxxiil. of the Ann. Mas. Genova, pp. 388-389, I 

 proposed to unite the genera Cambala, Gli/phiulus, and Trachy- 

 iuhis. But provisionally, at all events, perhaps they may be 

 recognized until more intermediate forms come to light. More- 

 over, I have thought it admissible to add two more genera to 

 the series. The five that are now known may be recognized 

 by the following key : — 



a. The segments of the body furuished with as 



many as 20 longitudinal crests, the crests on 

 each side extending to the base of the legs ; 

 tirst tergite at most only carinate behind ; 

 with 4 or 5 crests on the dorsum of the 

 segments, 

 a'. With 4 dorsal crests, the median one obso- 

 lete ; all the crests undivided, the areas 



between them smooth and polished Cambala, Gray. 



Type annulata (Say), 

 fc". "With 5 dorsal crests lying between the pore- 

 bearing crests, 

 a*. First tergite as in Cambala, not carinate 



above Caynbalopsis, no7. 



Type calvus (Poc). 

 P. First tergite carinate above in its posterior 



half Trachyiulm, Pet. 



Type ceylo7iicus (Pet.). 



b. Segments furnished with from 9 to 12 keels, 



the area above the base of the legs not keeled ; 

 first tergite completely covered with carinas ; 

 with 3 (4) crests on the dorsum of the seg- 

 ments, 

 a'. Segments with 11 (12) bituberculiform 

 crests — three on each side bt'low the pori- 

 ferous crest, and on the dorsal area three 



tubercles behind and four in front Gb/phiulua, Gerv. 



Tj^e granulatus, Gerv. 

 fc'. Segments with only 9 crests, three between 

 the poriferous crests and two on each side 



below them Cambalomorpha, nov. 



IjT^eformosa, sp. n. 



The genera Cambala and Trachyiulus contain, I believe, 

 but one species each. In addition to calvus, I refer to Cam- 

 hahpsis the Sumatra species caveniicola and dentata recently 

 referred by me to the genus Cambala. Cambalomorpha 

 contains the three enumerated below. 



