MELVILL AND STANDKN : SHELLS FROM L1FU. 398 



Borsonia bifasciata Pease. — Exactly agreeing with Sand- 

 wich Island types in the British Museum, but surely a 

 Clathurella. 



B. lutea Pease. — A pale straw-coloured shell, equally well 

 placed as Glyphostoma. 



B. nigrocincta Montrouzier. — Quite typical, and in good 

 condition. The genus Borsonia Bellardi, founded in 1839 

 on a fossil possessing a columellar plait, has been extended 

 to embrace a few recent N. Caledonian species, but in our 

 humble judgment they intergrade with Glyphostoma and 

 other Mangi/tce, and we only keep them separate now for 

 the sake of comparison with Tryon's Manual. 



Mangilia agna M. & S., p. 279, 1896. 



M. bascauda M. & S., p. 279, 1896. 



M. calathiscus M. & S., p. 280, 1896. 



M. eumerista M. & S., p. 280, 1896. 



M. himerodes M. & S., p. 281, 1896. 



M. himerta M. & S., p. 281, 1896. 



M. orophoma M. & S., p. 282, 1896. 



M. stibarochila M. & S., p. 283, 1896. 



M. thalycra M. & S., p. 283, 1896. 



M. thiasotes M. & S., p. 284, 1896. 



M. (Clavatula) rubida Hinds. — Many specimens. It seems 

 variable, both as to size and form. Some are more oblong 

 than is normal, the ribbing then being not so pronounced. 

 All, however, agree in colour and marking. M. rubida is 

 of wide distribution, being recorded from Mauritius, New 

 Guinea, New Ireland, Fiji Islands, and Cook's Island 

 (Tryon). 



M. (Clavatula) zonata Reeve.— A prettily-banded species; 

 also recorded from the Philippines. 



M. (Cythara) conohelicoides Reeve. — Large and well- 

 marked. Plentiful. 



M. (Cythara) euselma M. & S., p. 284, 1896. 



J.C, viii., July 1897 



