228 Annals of the South African Museum. 



It is impossible to regard this species as in any way connected 

 with Sulla livida, Lin. (Syst. Nat., Ed. 10. i. p. 729) & Gault. (Index 

 Test. pi. 25, f. B), which appears to represent a different Genus. 



varr. C<ERULEUS, FASCIATUS, and OVATUS, Kiister. 

 1844 Auricula livida, Desh., varr. coerulea, ovata,&ndfasciata, Kiist., 



Conch. Cab. p. 45. pi. 6 (1843), f. 22-26. D.F. 

 Hab. NATAL coast (Krauss). 



479. MELAMPUS OEDINAEIUS, Melv. & Pons. [S.A.M.] 



1901 Melampus or^marms,M.&P.,A.M.N.H.viii.p.321.pl.2 J 114. D.F. 

 Type in British Museum. 

 Hab. NATAL. Mouth of Umlaas Eiver (Burnup). 



480. MELAMPUS PARVULUS, Nuttall. [S.A.M.] 



1854 Melampus 2>firvnlus, Nutt., Pfr., Mai. Blatt. i. p. 147 (without 



characters). 



1856 ,, Mon. Auric, p. 24. D. 



1857 Cat. Auric, p. 16. D. 



1871 ,, ,, von Mts. & Langkavel, Siidsee- 



Conch. p. 56. pi. 3, f. 10. F. 



1898 Kob., Conch. Cab. p. 220. pi. 26, 



f. 5. D.F. 



Originals in British Museum. 



Hab. NATAL. Durban Bay; mouths of Umlaas and Umkomaas 

 Rivers (Burnup). 



Owing to the diverse geographical distribution, it is most unlikely 

 that these Natal specimens are conspecific with the true parvulus, 

 which was described from Oahu ; but, in the series examined, I 

 have been unable to find valid conchological grounds for their 

 separation. Is it possible that the species can have been introduced 

 alive in ballast '? 



481. MELAMPUS SEMIARATUS, sp. nov., pi. 2, f. 8. [S.A.M.] 



1898 Melampus gfram/er,"Mouss.,"M.&P.,Proc.Mal.Soc.iii.p.l80. L. 

 Shell small, conic-ovate, sublimate, solid, rather glossy, of uniform 

 dark brown colour, the upper and lower portions covered with spiral 

 grooves which are crossed by faint transverse strias ; the middle 

 portion is destitute of sulcation, and thus has a comparatively 

 smooth appearance, Spire short, conical; apax acute. 6 flat 



