CHAMBERLIN : WEST INDIAN CHILOPODA AND DIPLOPODA. 191 



deep and sharply defined entirely across the dorsum. The longitudi- 

 nal sulcus just above the pore is also deeply impressed. The second 

 tergite extends below the collum. The collum is widely rounded 

 below and is margined laterally and up along the anterior corner; on 

 each side it is marked with a fine but clearly defined longitudinal 

 sulcus extending across the plate at the level of the eye, this being 

 ordinaril}^ curved b}^ a vertical sulcus in front of the middle of plate 

 and another one behind the middle. Eyes three and a fourth or more 

 their longest diameter apart; ocelli thirty to forty-fiA.'e in mostly even 

 series, less commonly in six or eight. The vertig'ial sulcus weak. 

 Antennae very short, sensory cones, numerous. Scobina present 

 caudad to the thirty-fifth segment. Anal valves strongly compressed, 

 much exceeding the scutum which is angulai' but narrowly rounded 

 behind. Median plate of anterior gonopods of male strongly nar- 

 rowed distad with sides distally concave, proximally convex and more 

 strongly diverging, not straight as in R. chazaliei. Outer distal divi- 

 sion of posterior gonopods thin, broadly cla^'ately widened, distal 

 margin strongly convex and incised toward the ends, thus bearing a 

 tooth at each end; inner process shorter than the outer, slender and 

 distally acute, not lamellate. The general color is bluish black. The 

 somites tend to ferruginous in a narrower stripe along caudal border 

 and are often but not always paler low on the sides than above. La- 

 brum ferruginous, the head elsewhere ordinarily dark, with above 

 between the eyes a deeper black subquadrate area with the angles 

 extended sublaterad in acutely pointed processes or lines. Anal 

 scutum and valves topically blue-black, narrowly margined caudally 

 with pale. Legs yellowish to ferruginous. 



Length up to about 5,^ mm.; diameter up to 5.2 mm. 



105. Rhinocricus solitarius Pocock. 

 Journ. Linn. soc. London, 1S94, 24, p. 496, pi. 38, f. 6.i 

 Habitat— Jamaica (T. D. A. Cockerell).i 



106. Rhinocricus parvior, sp. nov. 



Type.— M. C. Z. 4,357. Paratypes.— M. C. Z. 4,358. Jamaica: 

 Liguanea Plain, 1911, C. T. Brues. 



In coloration and general appearance resembling R. mandemllei but, 



