Eglidin, Callostiacutn, Mesiilia, >!)-c. 'M',\ 



1886. Tunte/la (Turritellopsis) ucicula: Tryoii, Mon. Conch, vol. viii. 



j>. 1?07. pi. Ixiv. t\g. V2. 

 18!>7. 'I'lirntel/offsig ucicula : Kobolt, Coiirh. Cub., TunUella^ p. G7, 



pi. XX. figs. 10, 11. 



Ilab. Off Giaml Maiian, near Duck Islaml, aiul soutli of 

 Cape Cod {Stimpson). Also recorded \\y other autlior.s tVoin 

 Freiichmau'.s 15. ly, Labrador, &c. Vadso and Magciil, iioitli 

 coast of Ni>r\vay (6'ar.v). 



The animal ot this species has not boon described, but the. 

 operculum, according to Sans, is very thin, pellucid, and 

 con.sist.s of about ten narrow and re<^uiar whorls. Dal I 

 and Tryoji (/. c. tmpni) have su^'-^jrestod that Carpenter's 

 ^^ ? .]fes(iU<i tfnuiscul/>(a'^ *y from Calit'ornia, is the sanio as 

 aciculd. Thi.s, in my opinion, is incorrect. The CaliLorniau 

 shell is smaller, has a h.'ss tapering spire, and much iiner 

 sculpture. At a mere glance it is seen to be distinct, and 

 recalls very closely the general form of the type of Fenella 

 to which (Jarpenter has made reference ; indeed, 1 tiiink 

 it preferable to loc:ite it in that genus rather than in 

 'lurritellopf.is. 



Turritellopsis (jralissima^ Thiele. 



1913. TiirrUellopsis gratissima, Thiele, Deutsch. Siidpolar-Exped, 

 vol. xiii. p. 201, pi. xii. fig. 20, pi. xv. tig. 23 (radula). 



ILih. Antarctic \ Gauss' Expedition). 



According to Tliiele this species agrees practically iu every 

 essential respect with Tun-itellopsis, and although the radula 

 exhibits sniall dilTerences, it agrees with that of the boreal 

 form {T. ucicula) in general character. 



Turritellopsis latior, Thiele. 

 1913. Tttiritellopsis latior, Thiele, op. cit. p. 202, pi. xii. fig. 21. 



Ilab. Antarctic {''Gauss* Expedition), 



TaCHYRHYNCHUS, Morch. 



18G8. Tachtp'i/iichiai, Miirch, Amer. Joiun. Conch, vol. iv. p. 4G. 

 1885. MesaJia {Tuchyrhijnchua): Fischer, Man. Conch, p. 004. 



Short descriptions of the animal of the type {T. retiailatu) 

 are given by Morch & Jeffreys, and the operculum is said 

 to be " horny, yellow, orbicular, with nine narrow turns, 

 nearly Hat." To coniplete this description it is only neccssiuy 



• rroc. Calif. Acad. Mat. Sci. ISOC, p. 216. 

 Ann. (0 Maj. S. Hist. Ser. 8. Vol. xv. 1^5 



