IIELICINA.— Platk IV. 



vel roseo-fulvA ; spird depresso-conii;!. nnfrniUhns 

 pwvis, brevibus; ultimo anfraclii r<'i,/j.r, ^.-n. innlii, 

 rotundo, cohimella trigona, labia extirin' nlbo. I,iiiii, 

 ad juncturam vix evmrginato. 



The DuiiiDUS Helicina. Shell subcompressed, thin, 

 yellowish or rose-fulvous ; spire depressed-conical, 

 with small, short whorls ; last whorl compressed, 

 rounded in the middle, columella trigonal, outer lip 

 white, thin, scarcely emarginated at the junction. 



C. B. Adams. Contributions to Conehology, vol. vi. p. 93. 



Ilab. Jamaica. 



Species 29. (Fig «, b, Mus. Brit.) 



Helicina rotunda. Hcl. testa hrl/ri/nnni, .•^ii/n//o!j<is,i, 

 luteu, snperne fidvo-ntbescmiti, Irrii/nlii, tciiiiiagrtdi'i ; 

 spirA subelevata, lateribus convexis, anfractibus 

 pa7-vis ; ultimo anfractu subdepresso ; callo veii- 

 trati rotundato ; columella brevi, subtiigona ; aper- 

 turd semilunar ; labia externa tenui, rcfiexo, ad 

 juncturam vix emarginata. 



The rounded Helicina. Shell heliciform, subglobose, 

 yellowish, reddi.sh-brown above, smooth, rather 

 thin, spire slightly elevated, with convex sides, 

 whorls small; last whorl a little depressed ; ventral 

 callus rounded, columella short, a little trigonal; 

 aperture semilunar; outer lip thin, reflected, 

 scarcely emarginated at the junction. 



D'OuBiGNY. Mollusques de I'lle de Cuba, p. 252. 



Hab. Cuba. 



0. r, 



llab. 



Species 31. (Mus. Brit.) 

 iciNA MEGASTO.MA. Hcl. fesfd siibglobosd, iernii, hevi- 

 yata ; fulvd vel rubra-fuscd ; spird ilevatd, coiiird ; 

 ultimo anfractu rotundato ; callo ventrali sub- 

 rntunda, aperturd majusadd ; columelld parvd, 

 acuta ; labia externa raiundo, angusto, ad junctu- 

 ram leviter emarginato. 



LAKGE-MOUTiiED Helicina. Shell subglobose, thin, 

 smooth; fulvous or reddish-brown; spire elevated, 

 conical, last whorl rounded ; ventral callus rather 

 rounded; aperture rather large, columella small, 

 sharp; outer lip rounded, narrow, slightly emar- 

 ginated at the junction. 



Adams. Contributions to Conehology. 

 ■i,a, aj/ini,, C. B. Adams (var. ?). 

 . Jamaica. 



Species 32. (Mus. Brit.) 

 Helicina LixxonALis. Tlel. testa subtrocbiformi. tniii, 

 hivigatd, fiisrn-ruhcsroiti .• .<i^)/;v( ronicA : uUiin 

 anfractu mliuidn: ,;,l,iiii, 11,! pan;',. lrign,i,i ; hdil 



Spe 



(Mus. Brit.) 



Helicina vinoiNEA. Hel. testd globasa, solidd, superne 

 acuminatd, inferno rotundd, spiralittr striata ; 

 spirA elevatd, mucronatd ; aperturd semilunari ; 

 labia cnlumellari infra medium lata, excavato ; labia 

 externa intus incrassata, ad marginem acuto, infra 

 medium producto ; operculo crasso, extus granulaso. 



The virgin Helicina. SheU globose, solid, acumi- 

 nated above, rounded beneatli, spirally striated ; 

 spire elevated, mucrouate ; aperture semilunar, 

 columellar lip below the middle wide, excavated ; 

 outer lip thickened within, sharp at the edge, 

 produced beneath the middle; operculum thick, 

 granular outside. 



Lea. Obs. on Unio and other L.aud Shells, vol. i. t.. JCi', 

 t. 19, {. 58. 



UchciiKi iiiiijiullinii^ Ferrussac. 



Hah. Cuba. 



externa 

 expanso. 



md,- 



The littoral Helicina. Shell somewhat trochiform, 

 thin, smooth, reddish-brown ; spire conical, last 

 whorl rounded ; columella siruill, trigonal, outer 

 lip .sloped above, yellow, flat, thin, a little exjianded, 

 slightly notched at the junction. 



CtUNDLACII. ? 



Hab. Barraccas, Cuba. 



Species 33. (Mus. lirit. ) 

 Helicina CRAssicostata. //,-/. te.<!td camprcsso-globosd, 

 alhd, crassd, spivaliter crebrb costatd ; columelld 

 lata, suhexcavatA, rectittsculd; aperturd suhrotundd 

 ad juncturam intits plicatd ; labia extcrno lati>. 

 planulato, mperne vix depresso. 

 The tiiick-ribhed Helicina. Shell compressed-globose, 

 white, thick, spirally closely ribbed; columella 

 broad, subexcavutod, ratlicr straight; aperture 

 somewhat beaked, with an intciior jJait at the 

 juncture; outer lip binad. Ilaltrnnl. vrrv sliuhtlv 

 depressed above. 

 SoWERBV. Thesaurus Cauhyli,.,.,,,,, ILH-na, Species 

 Gl. Plato IH., f. 1)7. 



Hah. ,' 



The locality of this apparently uiihiue shell is un- 

 known. 



