162 ^VALTEK E. COLLINGE. 



TJrocyclus flavescens [Kef erst.). 



Parniarion flavescens Keferstein, Malak. Blatt., 1866, p. 70, t. ii, 



figs. 1-8. 



Urocyclus flavescens {Kef erst. ) ; Gil^bons, Quart. Journ. Concli., 



1879, vol. ii, p. 138 ; Heynemann, 

 Jalirb. d. Deiitsch. Mai. Gres., 

 1885, Bd. xii, p. 293 ; Cockerell, 

 Concliologist, 1893, vol. ii, p. 187; 

 Simroth, Deiitscb. Ost-Afr. IV, 

 Nacktsclm., 1895, p. 6. 



Hab. — Pinetown^ Pieterinaritzburg. 



Urocyclus fasciatus r. Martens. 



Urocyclus fasciatus v. Martens, Jalirb. d. Deutscb. Mai. Ges., 1885, 



Bd. xii. p. 293 ; Cockerell, Con- 

 cliologist, 1893, vol. ii, p. 187 ; 

 Simroth, Deutscb. Ost-Afr. IV, 

 Nacktscbu., 1895, p. 6. 



Gibbons recorded a species of Urocyclus in 1879, which 

 he referred to U. flavescens Kef. Cockerell (9) regarded it 

 as referable to fasciatus Marts., and judging from the 

 description this is probably correct. 



Hab. — Mozambique and Pietermaritzburg. 



Urocyclus pallescens Ckll. 



Urocyclus pallescens Cocl-erell, Ann. Mag. Nat. Hist., 1891 (6 ser.), 



vol. viii, p. 101 ; Coiicbologist. 

 1893, vol. ii, p. 187. 



"Length (in alcohol) 314 mm.; uniform pale greyish ochre, 

 spotless. Mantle reticulated, the opening only a narrow slit, 

 or small, rather oblong hole, very much smaller than in 

 kirkii, and inconspicuous. Mucus-pore smaller than in 

 kirkii. Respiratory orifice as in Heynemanu's figure of 

 fasciatus. Reticulation on body in longitudinal squarish 

 series, about twelve on each side. Mantle bluntly angulate 

 behind. Keel indistinct, no lateral ridges. 



"The mantle is 12 mm. long, with the slit or opening very 

 near its hind edo-e. 



