200 bulletin: museum of comparativa zoology. 



128. Rhinocricus monilicornis (Porat). 



S-pirobolus monilicornis Porat, Bih. Svensk. vet.-akad. Handl., 1876, 4, no. 7, 



p. 31. 

 Rhinocricus monilicornis Pocock, Journ. Linn. soc. London, 1894, 24, p. 499.^ 



Habitat. — Haiti: Grand Riviere (W. M. Mann). Santo Domingo: 

 Cape Haitien.i Barbados (H, W. Feilden).i Trinidad: Port of 

 Spain, Esperanza Sugar Estate (R. Thaxter). Tobago: Milford 

 Bay, Richmond Bay, King Bay, Plymouth, Scarboro (H. L. Clark). 



129. Rhinocricus juxtus, sp. nov. 



Tyjye.—M. C. Z. 4,397. Grenada: Grand Etang. Roland Thaxter. 

 Paratypes.— M. C. Z. 4,398-4,401. Grenada: Arima, Verdant Vale, 

 St. Georges. R. Thaxter. 



This species is nearest R. cansociatus from Union Island; but 

 it is a larger species, the length being up to 60 mm., with diameter 

 5.2 mm., instead of only up to 35 mm. with maximum diameter 3 mm. 

 The number of segments is forty-seven' or forcy-eight instead of 

 forty-four. The two sutures are dorsally complete and distinct from 

 the third to the penult segment inclusive; on the second somite the 

 posterior sulcus is almost obliterated and the anterior one is inter- 

 rupted at frequent intervals. The collum is much exceeded by the 

 second tergite which curves below it ventrally and fits against its 

 edge. Collum distinctly margined below and in front excepting the 

 dorsal region. A large shallow depression on lower part of frons; 

 toward the middle of this depression a pair of smaller pits across and 

 ectad from each of which extend two distinct sulci. The tip of the 

 anal scutum is free but does not exceed the valves. General color, 

 when dry, olive-black; in alcohol more green, especially above toward 

 anterior border. Caudal border of each ordinary segment flavo- 

 ferruginous, the light band above extending somewhat less than half 

 way to the suture but widening moderately below on each side. 

 The collum narrowly bordered all around by the flavoferruginous. 

 Tip of scutum weakly light-colored. Legs ferruginous to chestnut. 



130. Rhinocricus consociatus Pocock. 

 Journ. Linn. soc. Zool., 1894, 24, p. 500, p. 38, f. 7.i 

 Habitat. — Union.^ 



