I - - 



; M. 1 nd with somc radiolariae and 



diatomes. i Sp 



cimen is smalli instead of 57 Mill.), it may not be full-grown, but 



es with Smi 1 u's extensive description and his fine figu 



2. S Melvilli n. sp. PI. XXVII, fig. 7. 



Stal ,8S., 13j.tS.si. \..n Kei-islands. 560 M. Solid bluish grey mud. 1 - 



Stat. 300. 1 ■;.! I . Hmor-sea, 918 M- l' m< ~ :-; rt -'>' mud. 2 Sp 



Shell shortly fusiform, with long spire, thin, light yellowish red-brown. Nucleus wanting, 

 remaining whorls 11, angularly convex, concave above, lower pari with very oblique, somewhat 

 .dar ribs, forming smal] tubercles on the upper whorls, thick folds on the lower ones ; these 

 rili^ are n« .t visible in the excavation, their number is :: on last whorl; the whole shell is 

 red with fine growth-striae, intermingled with some coarser ones and very numerous, waved, 

 spiral lirae, as well on the ribs as in the interstices and in the subsutural excavation ; last whorl 

 rapidly attenuated below periphery, ending in a rather short, relatively very slender canal, 

 which is nearly white and sculptured with spirals in the same manner as the rest of shell. 

 Aperture oval, with a Munt angle above, peristome thin, fragile, the sinus according to growth- 

 lines probably wide, but not very deep. Columellar margin regularly curved, but suddenly 

 directed to the left, at the entrance of canal, which is contortedly directed to the left ; colu- 

 mellar margin with a white layer of enamel, interior of aperture brown, smooth. 



Alt. 62, lat. 20 ; apert. alt. 24 1 /.,, lat. 8'/, Mill. 



This fine "species is allied to S. eurina Smith (Ann. Mag. Nat. I list. Ser. 7, Vol. IV, 

 1899, p. 239; Zool. 111. Investigator, Moll. PI. 9, fig. 4), but the folds are more numerous 

 than in that species, which lias a much thicker, straighter canal and a shorter spire, a thickened 

 infrasutural margin. .S'. margaritae Smith, which I found somewhat similar in shape of spire 

 and ribs, has a considerably longcr last whorl, inclusive of canal. The specimen from Stat. 262 

 is a smaller, much worn shell, of somewhat doubtful character. 



3. Surcula supracostata n. sp. PI. XXVII, lig. 8. 



Stat. 45. 7°24'S., ii8°i5'2E. Flores-sea. 794 M. Fine grey mud with somc radiolariae and 

 diatomes. 2 Spec. 



Shdl fusiform, with short canal, thin, shining, light yellowish-white. Nucleus wanting, 



remaining whorls 8, nearly regularly convex, very slightly exavated below the conspicuous but 



shallow suture in lower whorls, mon- so in upper ones. Sculpture consisting in the upper whorls 



ol' thick axial ribs, disappearing on the sixth whorl, which is 9-ribbed, the lower whorls are 



ly smooth, but are sculptured under the lens by fine, strongly waved growth-lines, more 



ipicuous at irregular intervals; the whole shell crossed b) verj faint spirals, scarcely visible 



on the upper part of whorls, stronger on the lower part, having the appearance of crowded 



inal. Last whorl regularly attenuated below, ending in a short, wide canal. Aper- 



53 



