2 14 



Stat. 52. 9°3'.4S., II9°56'.7E. Savu Sea. 959 M. Globigerine ooze, i Spec. 



Stat. 212. 5°54'.5S., 120° 19'. 2 E. Banda Sea. 462 M. Fine grey and green, mud. i Spec. 



Stat. 286. 8°5o'.2S., I27°2'.2E. Timor Sea. 883 M. Mud. i Spec. 



The specimens are young, the largest having only a diameter of 10 Mill., whereas the 

 smallest specimen recorded by Smith, has a diameter of 2 i Mill. As the specimens have been 

 compared by the author, I am not in doubt about the identification. 



25. Natica (Lunatia) faba n. sp. PI. XIII, fig. 5. 



Stat. 88. o°34'.6N., ii9°8'.sE. Makassar Strait. 1301 M. Fine grey mud. i Spec. 



Shell small, conically subglobose, with blunt (eroded) spire, thin, nearly smooth, but with 

 very fine growth-striae; white under an olive epidermis. Whorls about 3Y2, nucleus wanting, 

 remaining whorls moderately convex, separated by a canaliculate suture, last whorl regularly 

 rounded. Aperture oblong-oval, outer and basal margins regularly curved, columellar margin 

 concave, its upper part forming on the left side a thick layer of enamel on the bodywhorl, 

 becoming narrow towards the median part, where it partly covers the umbilicus and is again 

 thickened and reflected in joining the basal margin. Umbihcus narrow, so much covered, as to 

 leave only a narrow slit. No funiculum. Operculum corneous. 



Ah. 57^, lat. 47,; apert. alt. 37., lat. 27, Mill. 



This species is allied to the preceding one, but is more oval, has a smaller umbilicus, 

 a canaliculate suture and the puckerings below the suture, which are present in the specimens 

 of N. simulans Smith of the same size, are wanting. It has no juvenile appearance. 



26. Natica (Mamma) aurantia Lamarck. 



Lamarck. An. s. vert. Ed. Desh. Vol. VIII, p. 632. 



RUMPH. Amb. Rariteitkamer, p. 76, N" jc. 



Philippi. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 34, PI. 4, fig. 13, 14. 



Reeve. Conch. Ic. Vol. IX, Natica, fig. 20. 



Tryon. Man. of Conch. Vol. VIII, p. 42, PI. 15, fig. 39. 



Stat. 80. Borneo-bank. 40 — 50 M. Fine coralsand. i Spec. 



var. Mittrei Hombron & Jacquinot. 



HoMBRON & Jacquinot. Voy. Astrol. & Zel. p. 65. 



Stat. 114. Kwandang-bay-entrance. 75 M. Hard sand, very fine, i Spec. 

 Both specimens are young, that identified as var. Mittrei has the umbilicus not quite filled. 



var. sti^aminea Recluz. 



Recluz. Proc. Zool. Soc. Lond. 1843, p. 211. 



Philippi. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 113, PI. 16, fig. 3. 



Reeve. Conch. Ic. Vol. IX, Natica, fig. 32 (var. lutea s. straminea). 



Tryon. Man. of Conch. Vol. VIII, p. 42, PI. 15, fig. 40. 



Stat. 37. Sailus Ketjil, Paternoster-islands. Up to 27 M. Coral and coralsand. i Spec. 

 Stat. 169. Atjatuning, West coast of New Guinea. Reef, i Spec. 



106 



