212 



2. Genus Mesalia Gray. 



T. tuiTitelliformis , anfr. ult. rotundato, apertura basi 

 effusa, subcanaliculata, columella recedente, basi leviter contorta. 



M e s a 1 i a V a r i a K i e n e r. T. imperforata, conico-turrita, 

 solidula, unicolor fulva; apice acuto; anfr. numerosi, convexi vel 

 subangulati, striis incrementi lineisque spiralibus confertis sculpti, 

 liris 5 majoribus cingulati, intra primam et secundam subex- 

 cavati, sutura distincta discreti ; ult. rotundatus, basi lira majore 

 intrante cingulatus; apert. ovato-rotundata , basi compressa, 

 effusa, columella recedente, ad modum plicae contorta. — Alt. 

 35 Mm. 



Tunitella varia Kiener Coq. viv. T. 12, F. 3. 



Mesalia brevialis autor. mediterr. — An Mes. brevialis Lam. var. 



minor ? 



Hab. mare lusitanicum et mediterraneum anterius. 



3. Genus Turritellopsis Sars. 



T. forma et sculptura eidem Turritellae simillima, radula 

 vero structura valde discrepante. — Sars. 



Turritello psis acicula Stimpson. T. elongato- 

 turrita, spira sensim attenuata, apice obtuse conico, solidula, 

 opaca, nivea, vix nitida; anfr. 9 angulato-convexi, liris spiralibus 

 inaequalibus, sat elevatis, quarum in anfr. ult. 5, in ceteris 3 

 magis conspicuis, striis crebris longitudinalibus subtilissime de- 

 cussatis obducti; ult. circiter 2/^ testae occupans, peripheria 

 obsolete carinatus, basi parum planulata ; sutura subcanaliculata ; 

 apert. rotundato-ovata, inferne vix expansa, labro externo tenui 

 leviter indentato, interno aequalius arcuato. — Long. 8 Mm. 

 Sars. 



Turritella acicula Stimpson Pr. Boston Soc. IV 1851 p. 15. — Shells 



New. Eugl. T. 1, F. 5. - Gould and Binney p. 310 F. 588. — 



(Turritellopsis) Sars MoII. Norv. p. 186 T. 10, F. 14. 



Hab. Mare arcticum. 



39. Familia Caecidae. 



1. Genus Caecum Fleming. 



T. cylindrica, apice in pullis regulariter sed solute spi- 

 rato, dein truncato; operc. solidum. 



1. Caecum trachea Montagu. T. fere cylindrica, 

 curvata, solida, opaca, nitens, annulis concentricis cingulata, 

 interstitiis angustissimis, lutescenti-fusca ; spira in adultis nulla, 

 apice truncato, epiphragmate clauso; apert. annularis, margine 



