I-IELICINA.— Plate XXXII. 



The specimens of one variety liave no markings on the 

 under part of the last whorl. 



•Species 2S9. (Mus. Brit.) 



Helicina oceanica. Ilel. testa minutd, compressd, 

 /xvii/aid, medio angulatd ; supernc lineis nndulaiis 

 nihiis notatd ; aperturd trigond ; lahio externo 

 tenui, hand rejlexo. 



The (ice.\nic Helicina. Sliell minute, compressed, 

 smooth, angular in the middle ; marked above 

 with undulating red lines ; aperture trigonal ; 

 outer lip thin, not reflected. 



Hab. Isl. Apaiang, Pacific. 



More flattened than Ilel. miif:ii'a. with the outer lip 

 not reflected. 



last whorl girt in the middle with a thin crenu- 

 lated keel, depressed below the keel, sulcated 

 round the ventral callus; ventral callus small, 

 round: aperture angular, columeUa small, oblique, 

 outer lip sharply angular in the middle. 



Wright. ? 



Hab. Cuba. 



This flattish little species is remarkable for having a 



depression or groove round the ventral callus. 



Species 290. (Mus. Crosse.) 



Mki.icina Schkamsii. Ilel. testd pan:d, trochiformi, 

 I'lisco-corned, tenui, tenuiter coticentrirc striatii ; 

 Kpird conicd, anfrartibus qvinque, mbelevati.?, pmild 

 ronvexis ; ultima anfractu svprd medium obtiif'e 

 anyulato ; columella albd, infrd subruneatd ; ccdlo 

 reriii-(di albo, parvo, rotundo ; labia externa tenui. 



Schkam-m's Helicina. Shell small, trochiform, horny, 

 brown, thin, finely concentrically striated ; spire 

 conical, whorls five, slightly elevated, a little 

 convex ; last whorl obtusely angular above the 

 middle; columella white, a little cuneate below; 

 ventral callus white, small, round, outer lip thin. 



Ci;o.sse. Journ. de Conch., l.STS, p. L'51, PI. III., f. U). 



Ilab. ^^'oods of ilatouba, Guadaloupe. 



Species 291, ( JIus. Brit.) 



Hklicina MONTANA. //(/. textd iiarvd, valdc depressd ; 

 fiimoso-fusrd ; spin) di jursnd, anffactibiis com- 

 jilanalis ; ultimo auj'ractu mcdiu carina tenui 

 rrenulatn ciiicto, infrd carinum deprcsso, circcl 

 calliim ventralem. sulcata ; cedlo ventrali parvo, 

 rotunda ; aperturd angulatd ; culamellA parvd, 

 nbliqvd, labia cxterno medio acute angulato. 



The mountain Helicina. Shell small, much depressed; 

 smoky brown ; spire depressed, whorls flattened ; 



Species 292. (Mus. Brit.) 



Helicina constiucta. Hel. testd crassd, subdepressd, 

 angulatd, stramined vel pallide rosed, nonnunquam 

 rubra intcrruptim strigatd ; sjnrd convexo-conicd, 

 anfractibus planulatis ; ultimo anfractu paulo 

 infrd medium angulato, obtuse carinato, iufrd 

 carinum amvexo, prope aperturam contractu ; 

 ajurliirii parvd, rubrd, columelld parvd, calla 

 rentnitt il lahio externa vivide rubris. 



The cunstuicteI) Helicina. Shell thick, subdepressed, 

 angular, straw-coloured or pale rose, sometimes 

 interruptedly striped with red ; spire convex- 

 conical, whorls flattened ; last vfhorl angular a 

 little below the nuddle, obtusely keeled, convex 

 below the keel ; contracted near the mouth ; 

 aperture small, red, columella small, ventral 

 callus aud outer lip bright red. 



Pfeiffer. Proc. Zool. Soc. 



Hab. Sandwich Islands. 



Species 293. (Mus. Brit.) 



Helicina iui'aka. Ilel. tesid pared, globosd, grisea- 

 albd ; spird parvd, acundnatd ; anfractibus paucis, 

 parois ; ultimo anfractu magna, rotundo ; c.allo 

 ccnlrali tumido ; aperturd obliqud, semilunari, 

 columelld parvd, ad junctiiram cuneatd ; labia 

 externa angusto, re/lexn. 



The riveu-bank Helicina. Shell small, globose, 

 greyish-white; spire small, acuminated; whorls 

 few, small ; last whorl large, round ; ventral 

 callus tumid ; aperture oblique, semilunar, colu- 

 mella small, cuneate at the juncture ; outer lip 

 narrow, reflected. 



Pfeiffei;. ? 



Hab. Banks of the Magdalene, New Ca-auada. 



