86 Mr. J. C. Melvill on the 



apical, the remaining four being somewhat tumid, much 

 impressed suturally, and longitudinally roundly ribbed; ribs 

 eleven in number on the last whorl, the whole surface 

 being spirally coarsely lirate ; often in young specimens a 

 gemmuled appearance is noticeable on the ribs at the point of 

 junction with these spiral lirae, but this soon wears off. At 

 the sutures and at the centre of the last whorl are observable 

 red dashes and spots and a very obscure and interrupted 

 deep red band ; there is one very conspicuous and characteristic 

 deep red spot just behind the outer lip, this being reflected 

 within the aperture, which is oval-oblong, the outer lip being 

 somewhat thickened, with broad and conspicuous sinus ; 

 columella straight and canal somewhat truncate. 



Allied to the New Caledonian species M. himerta and 

 Jiimerodes, Melv. & Standen, from both of which it differs 

 more in form than in coloration, tlie characteristic dorsal red 

 spot being present in all three. In our catalogue of Madras 

 Mollusca, Mr. Standen and I referred to this species as 

 M. Horneana, Smith *, an almost equally abundant mollusk 

 in these seas with apparently identical distribution. 



Mangilia galigensis^ sp. n. (PI. I. fig. 4.) 



M. testa attenuato-fusiformi, perelongata, rufo-bruuuea ; anfracti- 

 bus novem, quorum apicali vitreo, tribus huic approximatis rufis, 

 unicoloribus, cseteris apud suturas compressis, ventricosulis, longi- 

 tudinaliter forticostatis, costis perpaiicis, in ultimo septem, costis 

 infra, juxta suturas, albescentibus, ad medium subangulatis, super- 

 ficie spiraliter delicatissime striata, eleganter vittata, albis zonis 

 cum rufis alternata ; apertura elongata; labro incrassato, nitido, 

 perlaevi, intus nigro-rufescente, extus albo-rufo vittato ; canali 

 breviter prolongata. 



Long. 14-50, lat. 4 mm. 



Hah. Galig Island. 



The nearest, in fact the only close ally to this very 

 beautiful form is M. Townsendi^ Sowb. t, but the ribs are two 

 or three fewer in number in each whorl and the colour is 

 rufous, with no tinge of greenish ; all the many examples of 

 M. Townsendi I have seen are alike in both these particulars, 

 being uniformly greenish olivaceous and many ribbed. The 

 dimensions are about the same. I had at first thought of 

 describing this as a varietal form only, but I defer to the 

 opinion of two or three malacologists in keeping it distinct. 

 M. Townsendi has not, so far as I am aware, been yet found 



• Journ. of Conch, vol. ix. p. 38. 



t Proc. Mai. Soc. Load. vol. i. p. 278 (1895) 



