C E R r r H I D E A . 



Plate IV. 



Species 23. (Fig. a, h, Mas. Cmuiiig.) 



CeiUTHIDE.^ ouNAT.i. Cev. ieddtnrnla,tviiiii,lfBmgatd, 

 fiiavd. albu id rubro fasciald, spiralikr obscure sulcata, 

 luiKjiiudinalittr costatd, coslis siibiiodosis, siibarenatis ; 

 aiifractibits rotitndis, idlimo infra subcarinato, slrinto; 

 ajwrtitrd subrotuudd, labro expanso, extus incrassato. 



The oitNAMENTED Cekithidea. Shell turreted, thin, 

 smooth, bi'owu, banded with white and red, spirally 

 obscurely grooved, loiigitudiiudiy ribbed, ribs rather 

 uodosBj ratlier arched ; whorls round, the last sHgiitly 

 keeled beneatli, striated ; aperture rounded, outer lip 

 expanded, thickened without. 



A. Adams, Sowerby's Thesaurus, Cerithium, sp. 1G7, f. 

 '277, 278. 



Hub. Isle of Negroes, Philippines; H. Cuming. 



Species 23. 



Cekithidea salmacida. Cer. testa angudd, teaui, tiir- 

 ritd, fused, toiiijitudiiialiter tenuicostutd, costis nmiie- 

 rosis, siiiualis ; aiifractibus rotui/dis, ultimo iiifrii bi- 

 cariitato; aperturd prodiictd, labro siituatu, subexpaiiso, 

 ten n't,. 



The salt-maush Cekithidea. Shell narrow, thin, tur- 

 reted, brown, longitudinally thin-ribbed, ribs nume- 

 rous, sinuous ; whorls rounded, the last bicarinated 

 beneath ; aperture produced, outer lip sinuated, 

 slightly expanded, thin. 



MORELET. 



Hah. !> 



More cylindrical in form than C. costata, with more nu- 

 merous whorls and closer ribs. 



Species 2-1. (.\Ius. Cuming.) 



Cekithidea Bombayana. Cer. testa pared, brevi,l(evigatd, 

 ten ni, fused, prope sulurain albd; aiifractibus rotundis, 

 obscure costatis, ad suturaiii uwniliferis, ultimo infra 

 tricariaato; aperturd subtrigond, labro infra producto. 



The Bombay Cekithidea. Shell small, short, smooth, 

 thin, brown, white near the suture ; whorls round, 

 obscurely ribbed, beaded at the suture, the last three- 

 keeled below; aperture subtrigoual, outer lip produced. 



Sowekby. 

 Hab. Bombay. 



A pretty little shell, with a row of bead-like, white no- 

 dules on the sutural margin of the whorls. 



Species 23. (Fig. a, b, Mus. Cuming.) 



Cekithidea mamillata. Cer. tesid pijramidali, glaucd , 

 fiisco fasciatd, solidd, lonyitudinaliter costatd, spira- 

 liter sulcata, costis quadriiuherculatis. tabereulis ro- 

 tundis, ultimo anfraclu infra tricariualo ; aperturd 

 intus fused, columelld obscure vniplicald, canali Into, 

 labro sinuato. 



The mamill.ated Cekithidea. Shell pyramidal, glau- 

 cous, banded with brown, solid, longitudinally ribbed, 

 spirally grooved, ribs with lour tubercles, tubercles 

 rounded, the last whorl tricarinated beneath; aper- 

 ture brown within, columella obscurely single-plaited, 

 canal broad, outer lip sinuated. 



llisso, Enum. Moll. Sicd. i. p. 191. 



Ilab. Sicily. 



Species 20. (Mus. Cuming.) 



Cekithidea Montagnei. Cer. testdpijraniidali, ceniri- 

 cusd, lavigatd, lonyiludiualiter costatd, fused, albu el 

 fusco-uigrescente fasciatd, costis l/evibus, areuatis ; iin- 

 fractibus rotundis, ultimo infra cariiiato, infra rurinaui 

 striato ; aperturd magnd, rotuiidd, columelld .subpla- 

 nulatd, canali anguslo, labro late expanso, a utici pro- 

 ducto. 



Montagne's Cekithidea. Shell pyramiilal, veutricose, 

 smooth, longitudinally ribbed, brown, banded with 

 white and blackish - brown, ribs smooth, arched ; 

 whorls round, the last carimited beneath, and stri- 

 ated under the keel ; aperture large, ro ind, columella 

 rather flat, canal narrow, outer lip widely expanded, 

 produced in front. 



D'Orbigny, Voy. dans Auu-r. Mer. Moll. 

 C. Reeviannm, C. B. Adams. 

 C. Largillierti, Philippi. 



May, 1860. 



