258 



Alt. 9, lat. sYs; apert. alt. 5, lat. v% Mill. 



Mr. Smith who compared this species for me in the British Museum, writes about it: 

 "closely allied to A. inoi^nata Smith" (Proc. Zool. Soc. Lond. 1879, p. 217, PI. 20, fig. 56), 

 but according- to that figure, my new species is more convex above, the spire consequently 

 less acute, the basal sinus is narrower and it differs in colour. The great depth, combined with 

 the different locality {inornata is from Japan) may argue in favour of the distinctness and give 

 more value to the differences in the shells. I have named the species after Mr. Smith's 

 christian-name. 



6. Ancilla abyssicola n. sp. PI. XVIII, fig. 5. 



Stat. 88. o°34'.6N., ii9°8'.5E. Makassar-strait. 1301 M. Fine grey mud. 5 Spec. 



Shell acuminately-oval, whitish, yellowish on the last whorl, with traces of brown lines 

 at the suture and balteus ; thin, pellucid, spire conic, blunt at the apex, which is porcellaneous ; 

 whorls about 4, sutures with a strong layer of enamel, filling them up, sides of spire nearly 

 straight, the greatest convexity of the shell laying in its lower part. Sculpture consisting of 

 fine growth-striae, coarser near the aperture and very fine spiral striae, one sulcus above the 

 undivided, white balteus. No tooth. Aperture oval, right margin thin, columellar margin arched, 

 with a rather strong layer of enamel on the body-whorl and a few short folds near the base. 

 Sinus broad and shallow. 



Alt. isVs, lat. 6; apert. alt. 6Y„, lat. 3 Mill. 



I know no species with which to compare this- new one, amongst the lot now at hand 

 A. oblonga Sow. is similar in the columellar folds, but differs in every other particular; I find 

 in litterature no closely allied species. 



Fam. Harpidae. 

 Harpa Lamarck. 



I. Harpa nobilis Lamarck. 



Lamarck. An. s. vert. Ed. II, Vol. X, p. 132. 



RUMPH. Amb. Rariteitkamer, p. 104, PI. 32, fig. L. 



KlENER. Coq. Viv. Vol. VII, Harpa, p. 9, PI. 3, fig. 5. 



Reeve. Conch. Ic. Vol. I, Harpa, fig. i. 



KiJSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. Ill, Harpa, p. 89, PL 6-], fig. 1—3. 



Tryon. Man. of Conch. Vol. V, p. 99, PI. 41, fig. 68. 



Stat. 96. South-east side of Pearl-bank, Sulu-archipelago. 15 M. Lithothamnion. i Spec. 



Still young but easily recognizable. 



