THE SLUGS OF NATAL. 165 



collected at Richmond, Natal, nearly in the centre of a 

 rotten log, by the Rev. J. R. Ward, whilst searching for 

 Peripatus. Mr. Ward forwarded the specimen to the 

 South African Museum, Cape Town, and it was ultimately 

 submitted to me. In this paper I gave figures, from an 

 alcoholic specimen, of A. burnupi, and also of the new 

 species. 



Later (6) I gave a further description and figure of the 

 genei-ative organs of A. burnupi, aiid in the same year des- 

 cribed a new species — A. jDurcelli — from Cape Town (7). 



It will thus be seen that we have four species belonging to this 

 genus, viz. A. gibbonsi (TF. G. Binn), A. burnupi^. A. 

 87n., A. natalensis Cllge., and A. purcelli Gllge., the first 

 three of which are found in Natal. 



Apera Heijii. 



Chlamydephorus W. G. Binneij, BnlL Mus. Comp. Zool. Harvard, 



1879, voL V, p. 831. 

 Apera Heynemann, Jahrb. d. Deutscli. Mai. Gesell., 1885, p. 20. 



Animal limacif orm ; cylindrical ; dorsum rounded, head 

 small : keels may or may not be pi'esent. There are a series 

 of radiating lines from the respiratory orifice, and two pro- 

 minent mid-dorsal ones. Peripodial gx'oove faintly marked. 

 Foot fringe distinct. Rugte usually prominent. Respiratory 

 orifice posterio-dorsal. No caudal mucous pore. 



Simroth wrongly states that there is no shell, while Cooke 

 (11, p. 440) describes it as "a single plate, internal." 



As Heynemann (13) has pointed out, Binney contradicts 

 himself in his description of the genus, for on p. 331 (2) he 

 states correctly " no caudal mucous pore," but on p. 358 he 

 speaks of a caudal mucous pore. 



Apera gibbonsi (IT, G. Binn.). 



Chlamydepborus gibbonsi W. G. Binney, Bull. Mus. Comp. Zool. 



Camb., U.S.A., 1879, 

 vol. V, p. 331, pi. ii, 



figs. A, B. 



