20 PEOCEEDINGS OF THE NATIONAL MUSEUM. vol.60. 



plate 9, figure 5. The anterior gonopods have the inner processes 

 unusually broad proximally, narrowing distally, the ectodistal angle 

 rounded, and the mesodistal one acute. Posterior gonopods as 

 shown in the figures (see pi. 9, figs. 6-8). 



Number of segments 42 to 46. 



Length, 25 mm. 



Locality. — Guatemala: Actele, two males and a young female (O. 

 F. Cook, May 2, 1906) ; Tectic, Santa Rosa, two females (O. F. Cook, 

 1906). 



Type.— C?it. No. 829, U.S.N.M. 



Superfamily SPIROBOLOIDEA.^ 



Genus RHINOCRICUS Karsch. 



43. RmNOCRICUS NICARAGUANUS, new species. 



Plate 9, figs. 9-11. 



Anterior region of segments light olive, with a pinkish band just 

 back of suture and the caudal border banded with deep red or red- 

 dish black. Collum olive, with anterior and posterior borders deep 

 red. Legs fulvous. Head smooth. Sulcus widely interrupted in 

 frontal region, the upper end of its lower division lying in a depres- 

 sion. Sensory cones of antennae very numerous. Collum smooth, 

 wudely rounded below. Second tergite extending much below level 

 of collum, not excavated, the anterior edge beneath collum oblique. 

 Sulcus complete. Sulci on following tergites also complete, but be- 

 coming obscure on the last several segments, a little curved opposite 

 the pore, which is well removed. Tergites smooth and shining, 

 striate only beneath. Scobina with anterior impression transversely 

 elliptic, the posterior striate area pointed behind, the scobina widely 

 separate from each other (pi. 9, fig. 11). Anal tergite bluntly 

 rounded behind, much exceeded by the valves. Anal sternite short 

 and wide, broadly trapeziform, the caudal-margin straight, the pos- 

 terior angle rounded (pi. 9, figs. 9, 10). 



Number of segments, 43. 



Length, 100 mm.; width, 12 mm. 



Locality. — Nicaragua: Chontales Camoapa, one female (W. R. 

 Richardson). 



Type.— Cat. No. 5,017, M.C.Z. 



» The family names under Spiroboloidea have been purposely omitted because of th« 

 present unsettled classification, due largely to lack of detailed morphological knowledge 

 of a considerable number of genera. 



