3o6 



Stat. 240. Banda. 9 — 45 M. Black sand and Lithothamnion. 9 Spec. 



Stat. 258. Tual, Kei-islands. 22 M. Lithothamnion, sand and coral. 11 Spec. 



Stat. 271. 5°4Ó'.7S., i34°o'E. Arafuru-Sea. 1788 M. Bluish green mud. 1 Spec. 



Stat. 301. Pepela-bay, East coast of Rotti-island. 22 M. Mud, coral and Lithothamnion. 2 Spec. 



Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 8 Spec. 



The specimen from Stat. 271, a young empty shell, certainly has not lived at that great 

 depth. The specimens vary in the development of the spiral lirae, which are more or less 

 conspicuous, some specimens from Banda f. i. are scarcely angular; one specimen from Stat. 258 

 lias a golden band and a young one from Stat. 3 1 3 has 2 brown bands, but is typical in 

 sculpture. The length of the spire is not constant. These differences in shape, colour and sculp- 

 ture, seem to be individual, as specimens from the same locality are connected by intermediate 

 one Phos varians Sow. may have been established on such an aberrant form. 



4. Phos nodicostatus A. Aclams. PI. XXIV, fig. 1. 



A. ADAMS. Proc. Zool. Soc. Lond. 1850, p. 154. 



SOWERBY. Thes. Conchyl. Vol. III, p. 93, PI. 2, fig. 47. 



Tryon. Man. of Conch. Vol. III, p. 216, PI. 83, fig. 506 [senticosus pars). 



Stat. 37. Sailus ketjil, Paternoster-islands. 27 M. and less. Coral and coralsand. 1 Spec. 



Stat. 99. North-Ubian. 16 — 23 M. Lithothamnion-bottom. 1 Spec. 



Stat. 133. Lirung, Salibabu-island. Up to 36 M. Mud and hard sand. 1 Spec. 



Stat. 240. Banda. 9 — 45 M. Black sand and Lithothamnion. 3 Spec. 



Stat. 248. Rumah Lusi, North point of Tiur-island. 36 M. 3 Spec. 



Stat. 299. Buka- or Cyrus-bay, South coast of Rotti-island. 34 M. Mud, coral and Litho- 

 thamnion. 1 Spec. 



Stat. 311. Sapeh-bay, East coast of Sumbawa. Up to 36 M. 1 Spec. 



I see no distinct brown band, as described by Adams and figured by Sowerby, even 

 not in specimens taken alive, but the shells perfectly agree with a specimen in my collection, 

 formerly named by Mr. E. A. Smith. I think Tryon is quite wrong in uniting this species to 

 P/i. senticosus. 



The radula of a specimen from Stat. 248 has the teeth in about 50 rows; the median 

 ones (M) are similar to those of PJi. roseatus, but the base is stronger and not so broad, the 

 central of the 3 denticles is stronger-, the laterals(i) have the usual 2 cusps, of which the distal 

 one is more slender and longer than in roseatus\ the whole radula more resembles that of 

 Ph. cancellatus (= textus) as figured by Troschel (Gebiss der Schnecken, Vol. II, PI. 8, fig. 2). 



5. Phos minutus n. sp. PI. XIX, fig. 9. 



Stat. 306. 8°27'S., 122 54'. 5 E. Savu-Sea. 247 M. Sandy mud. 28 Spec. 



Shell elongately ovate, transparent white (in fresh specimens), whorls about 6 1 /,, , of which 

 about 3 1 /;, from a large nucleus, with convex, smooth whorls, with one peripheral thread-like 

 keel, accompanied on nearly 2 whorls by a second one near the basal suture, and perhaps a 

 few axial ribs, the limits of nucleus are however not conspicuous, so I am not quite certain if 

 these ribs still belong to the nucleus. Subsequent whorls, very convex, with deep suture, with 



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