^ 268 



anteriorly, curved behind, with 10 cusps, of which the median 4 ones are very long, with a 

 shorter one, followed by two very short denticles one each side, they all are considerably longer 

 than the base. The laterals (i) are comparatively narrow, with a strongly curved base and one 

 very large cusp and five much smaller ones, becoming gradually smaller towards the proximal 

 end. These teeth are very different from those figured by Troschel especially the long cusp 

 of the laterals give a very peculiar character to those teeth. 



9. Mitra xerampelina Melvill. 



Melvill. Proc. Mai. Soc. Lond. Vol. I, 1894, p, 223, PL 14, fig. 5. 



Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. 12 M. Lithothamnion, sand 



and coral, i Spec. 

 Stat. 144. North of Salomakiee-(Damar-)island. 45 M. Coral bottom and Lithothamnion. i Spec. 



Both specimens are very young and were it not that Mr. Melvill had identified that 

 from Stat. 144 I should have been in doubt. Melvill's specimens were from Aden. 



10. Mitra millepitnctata n. sp. PI. XXII, fig. 5. 



Stat. 98. 6°9'N., 120° 21' E. Sulu-archipelago. 350 M. Sand, i Spec. 



Shell elongately-fusiform, with a long, sharp spire nearly as long as the dorsal part of 

 last whorl. Nucleus wanting, remaining whorls 8, slightly convex, separated by a well-marked, 

 slightly crenulated stiture. Sculpture consisting of spiral grooves, which are distinctly punctured, 

 about 1 5 grooves on last whorl and 4 intermediate rows of punctures in the interstices 3 to 6, 

 moreover very fine growth-striae, somewhat coarser, nearly groove-like at the punctures are visible 

 under the lens. The whole shell is ivory-white, with a row of subsquare yellowish-brown spots 

 below the suture, 8 in number on last whorl; the majority of the punctured grooves, especially on 

 the last whorl, is of the same colour. Aperture much broken, probably narrow, the intact upper 

 part not very sharp, smooth, columella slightly curved, with 5 oblique plaits, interior white. 



Alt. 23, lat. 7^/^; apert. alt. about 10 Mill. 



Though this shell is much injured, it has such peculiar characters, that I thought it 

 might be named and described, unfortunately it has not only a rather large hole, buth the 

 lower portion of last part of last whorl is wanting, so the shape of aperture and the measurements 

 are in some degree uncertain. In colour and also in shape, it has resemblance with M. nivea 

 Swains., but Mr. E. A. Smith, who compared it with that species writes: "Certainly not 7iivea 

 Swains., which has much finer spiral sculpture. 



1 1 . Mitra maesta Reeve. 



Reeve. Proc. Zool. Soc. Lond. 1845, p. 59. 



Conch. Ic. Vol. n, Mitra, fig. 323. 



SOWERBY. Thes. Conchyl. Vol. IV, Mitra, p. 11, PI. 26, fig. 595. 

 Tryon. Man. of Conch. Vol. IV, p. 143, PI, 42, fig. 226. 



Stat. 313. East of Dangar Besar, Saleh-bay. Up to -^6 M. Sand, coral and mud. 4 Spec. 



22 



