71 "TURK A NOVA" EXPEDITION. 



41. Man/inella lii/nliiia, Thicle. 



la lii/itliiid, Thiele, Deutsche Siidpolar-Exped., vol. XIII, p. 213, pi. XIII, fig. 2i> 



' 



Stations 316, 331, 339, 340 : 140-250 fathoms. 



This species was described Ity Dr. Thiele from very young specimens, only 

 3 '5 mm. iu length. The largest "Terra Nova" shell is 14 mm. long and 7 in width, 

 and the aperture is 1 1 5 mm. in length, and 3 wide. Although this specimen may 

 lie adult, it does not exhibit any thickening of the labrum. 



42. Volutomitra frai/Illima, Watson. 



Volutomitra fragillima, Watson, "Challenger "Gasteropoda, p. 263, pi. XIV, fig. 7 (1885). 

 Paradmete ti/pica, Strebel, Schwedisch. Siidpolar-Exped., Gastropoda, p. 22, pi. Ill, figs. 

 35A-35F ; Melvill and Standen, Voy. " Scotia," Zool., vol. V, p. 131. 



Station 194 : 180-200 fathoms. 



The Kerguelen shell figured by Watson has a much shorter spire than other 

 specimens from the same locality which agree perfectly with Strebel's figure of 

 Paradmete typica. The specimen in the present collection is of the same form, having 

 the produced spire. 



With regard to the generic position of this shell it appears to me to agree in all 

 respects with Volutomitra grb'nlandica, and consequently the genus Paradmete was not 

 required. The animals of these Antarctic forms are as yet unknown, but it is possible 

 that, when they have been investigated, they may be found to offer characters sufficient 

 to separate them from their northern allies, in which case the genus Paradmete will 

 become available for their reception. 



43. Admete delicatula, Smith. 



Admete delicatula, Smith, " Discovery " Gastropoda, p. 4, pi. I, figs. 5, 5A (1907). 



Station 316 : 190-250 fathoms. 



A single dead shell only, but agreeing iu all respects with the type. 



.1. antarctica, Strebel (Schwedisch. Siidpolar-Exped., Gastropoden, p. 21, pi. IV, 

 figs. 44A-C, 1908), is closely allied to the present species, but the spire is rather shorter 

 and the spiral sculpture finer. 



44. Dentalium major/ii/un, Mabille and Rochebruue. 



DentaUnm majorinum, M. and R., Mission Scientifique du Cap Horn, Zool., vol. VI, Mollusques, 

 p. 100, pi. IV, fig. 10 (1889) ; Pilsbry, Man. Conch., vol. XVII, p. 27, pi. XII, figs. 98, 99 

 (copy of Mab. and Roche.). 



Station 194 : 180-200 fathoms. 



The specimens from the above station agree exactly with the figure, but the 

 largest of them is only 24 mm. long, whereas the type appears to be about 50 mm. 

 The longitudinal costse are about 18-20 iu number anteriorly, fine, yet not acute, 

 rather uniform in thickness, and a trifle narrower than the intervening grooves, The 

 fine stritu of growth are a little oblique, 



