14 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 89 



ANETHOPORUS CLARKI Charaberlin 



Anethoporus clarki Chamberlin, Bull. Mus. Comp. Zool., vol. 62, pp. 184-185, 

 1918. 



Three females were collected at the eastern end of the Island of 

 Tobago, February 20, 1932. 



ANETHOPORUS GRACILIOR Chamberlin 



Anethoporus gracilior Chamberlin, Bull. Mus. Comp. Zool., vol. 62, pp. 185-186, 

 1918. 



A single female specimen, 53 mm long and "3.5 mm broad, with 56 

 segments was collected with the foregoing species. The specimen has 

 a distinct depression on each side of the head between the eye and 

 the antenna. 



Order ANOCHETA 



Family SPIROBOLIDAE 

 RHINOCRICUS LIMATULUS, n. sp. 



Ten specimens were collected at St. Claude, above Basse Terre, 

 Guadeloupe, March 13, 1932, by P. H. Dorsett and H. F. Loomis. 



Diagnosis. — Closest relationship seems to be with R. socius Cham- 

 berlin, which has not been examined, but R. liinatulus appears to differ 

 in its smaller size, more uniform coloration, scobina in a shorter series, 

 and in the form of the gonopods. 



Description. — Length of the largest specimen, a male, 68 mm, width 

 6.5 mm ; the females are stouter, one measuring 60 mm in length being 

 7 mm wide. Number of segments 46 to 49. 



The living animals have a rather dull sheen and are dark slate-gray 

 throughout, except for the narrowly colorless posterior margin of the 

 segments. 



Head with a definite furrow on the vertex and on the clypeal area 

 but not between the antennae on the front, which is crossed trans- 

 versely by a considerable number of fine impressed lines originating 

 near the antennae and arching upward across the middle of the head. 

 Antennal cones numerous. 



First segment with a short but prominent marginal rim below the 

 lower corner of the eye and not passing beyond the lower limit of 

 the segment ; sides broadly and evenly rounded. 



Ensuing segments strongly convex, especially at each end of the 

 body; the transverse depression scarcely evident on any segment. 

 Pores very evident, each being placed in the bottom of a small pit 

 which is bounded behind by a short, deep impression. Surface of the 



