l8 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 89 



Coxae of legs 3 and 4 moderately produced into triangular lobes. 

 Joint 3 of legs 3 to 7 sometimes with a lobe or swollen prominence 

 on the under side, the other joints nearly normal. 



Type.— U.S.N M. no. 1091. 



RHINOCRICUS MONILICORNIS (Porath) 



Spirobohis monilicornis Porath, Bih. Svensk. Vet.-Akad. Handl., vol. 4, p. 31, 

 1876. 



Specimens were collected in St. Martins ; Martinique ; Trinidad ; 

 Georgetown, British Guiana; and Paramaribo, Dutch Guiana. 



From these specimens and closely related forms it seems likely that 

 with a larger number of specimens from more localities it would be 

 found advisable to reduce R. consociatus Pocock, R. juxtus Chamber- 

 lin, and possibly R. tobagoensis Chamberlin, at least to the rank of 

 varieties of R. monilicornis, rather than to maintain them as species 

 distinguished by what appear to be intergrading characters of color, 

 size, and structure. 



RHINOCRICUS CONSOCIATUS Pocock 



Rhinocricns consociatus Pocock, Journ. Linn. Soc., London, vol. 24, p. 500, 1894. 

 Many specimens were collected on Bequia Island and at Hills- 

 borough, Carriacou Island, in February, 1932. Both islands were very 

 dry, and the specimens usually were found congregated beneath flat 

 stones, logs, or pieces of boards on moderately exposed hillsides. 



RHINOCRICUS CONSOCIATUS ECAUDATUS, n. var. 



Specimens collected near Grand Anse, Grenada, February 10, 1932, 

 show slight variations from the true R. consociatus. The last segment 

 equals, but does not exceed, the anal valves, and the median plate of 

 the gonopods has the sides slightly emarginate instead of being 

 straight, but the inner gonopods of the two forms are similar. Al- 

 though such differences are not considered sufficient for establishing 

 another species, it seems advisable to call attention to them by recog- 

 nizing the animals as a distinct variety. 



Type. — U.S.N. M. no. 1092. 



RHINOCRICUS GRAMMOSTICTUS Pocock 



Rhinocricns granimosticfus Pocock, Journ. Linn. Soc. London, vol. 24, p. 501, 

 1894. 

 A number of specimens were found in the Cul de Sac Valley, and 

 on the Bar de ITsle, above Castries, St. Lucia, February 2, 1932. 



