258 Major M. Connolly on 



and other respects match the cotype in the Stockholm 

 Museum. Allowing therefore for a degree of dimorphism 

 and the fact that Krauss described his species from immature 

 shells, it appears to me that E. acns and E. turri/ormis are 

 identical. 



In a large series of E. glaucocyanea , M. & P., it will be 

 found that the colour varies very considerably from bluish to 

 yellowish olivaceous, the shell remaining the same in texture 

 and consistency and all other details. E. acus is not glauco- 

 cyaneous, but in size, sculpture, form of spire, and shape of 

 whorls it agrees with E.glaucocyanea. The columella, too, in 

 both shells is rather peculiarly concave and similar. As the 

 colour, its chief characteristic, is a variable quantity, it seems 

 inadvisable to regard glaucocyanea as distinct from acus, 

 which comes from the same vicinity. 



Var. sarissa, Pilsbry. 



1906. Euonyma turriformis sarissa, Pilsb. Man. of Conch, xviii. p. 44, 

 pi. X. figs. 84, 85. 



Hah. Natal {Cassin). 



A yet stouter form, with apparently less sculpture. When 

 more is known of the anatomy this may be found to con- 

 stitute a different species. The largest specimen I have seen 

 contains 10 whorls and measures 21 X 6 mm. 



A shell of frequent occurrence in the neighbourhood of 

 Grahamstown agrees very closely with the typical turriformis 

 of Natal, except for a distinctly shorter aperture, specimens 

 which I have measured being respectively : — 



Shell. Aperture. Last whorl. 



rum. mm, mm. 



16-0X4-5 4-0x21 6-4 



11-7 X 3-5 3-4 X 1-5 52 



12-5x3-5 3-8xl'7 6-6 



5. Euonyma Iceocochlis (Melv. & Pons.). 



1896. Subulina IcBocochlis, M. & P. Ann. & Mag. Nat. Hist, xviii. p. 316, 



pi. XVI. fig. 3. 

 1898. Subulina leeocochlis, M. & P. Proc. Mai. Soc. iii. p. 179. 

 1898. Euonyma Iceocochlis, M. & P., Sturany, Siidafr. Moll. p. 62. 

 1906. Euonyma laococldis, M. & P., Pilsbry, Man. of Conch, xviii. p. 39, 



pi. X. fig. 68. 



/Tab. Cape Colony, Humansdorp, St. Francis Bay. 

 An easily recognizable sinistral species. 



