﻿S T Y L I F E R. 



Plate I, 



Genus STYLIFER. Broderip. 

 Testa teimissima, plerurnque pelhicida aut semi-pellii- 

 cida, liBvis, polita, iimltispiralis, suhulata vel snb- 

 ijlobosa; iipirc nhUqan, xtijliforml ; hihio extfriw 

 s-imtafuH product, ,. 

 Shell very thin, generally pellncid or semi-pellucid, 

 smooth, polished, multispiral, subulate or sub- 

 globose ; apex oblique, styliform ; outer lip sinu- 

 ously produced. 

 Themollusca secreting these glassy little shells are 

 parasitic on star-fishes and Echini, burrowing under 

 the skin, and forming tumours which appear exter- 

 nally. One species is found among the spines of our 

 common Echinus, and the first species described by 

 Mr. Broderip infects a starfish of the shores of Gala- 

 pagos islands. 



Species 1. (Fig. a, h. Mus. Brit.) 

 Stylifer Tuetoni. Stij. testa suhgluhosd, parvd, 

 apird itciimiiiatd, prodnctd, aiifractilms supernu 



fradibiis sup 

 p.,pniosls, nitl 



prod 

 nj>d.:l!s, ,q,!rahl,us 

 iiin.jno, f=„l.rr,i;i„f,'r.ilL 

 TuKTOx's Sttlifee. Shell subglobose, small, spire 

 acuminated, produced, whorls angular above, 

 apical minute papillose, last large, subrecti- 

 lateral. 

 Brodeeip. Proc. Zool. Soc. lSo-2, p. t)l. 

 Hah. On British Echini. 



Species 2. (Mus. Brit.) 



Stylifer ovoidea. Sty. testa suhglnbosd, spird moder- 

 ate produdd, anfractibus subrotundis, apicalibus 

 minutissiniis ; aperturd pyriformi, labia externa 

 superne subcompresso, sinuatim praducto. 



The egg-shaped Stylifer. Shell subglobose, spire 

 moderately produced, whorls rather round, 

 apical very minute ; aperture pp-iform, outer 

 lip shghtly compressed above, sinuously pro- 

 duced. 



A. ArAMS. Proc. Zool. Soc. 



Hab. 



Species 3. (Mns. Brit.) 



Stylifer asteeicola. Sly. testa ovatu-ghbosd ^pmi 

 hrevi acuiiiiiiatd ; anfractibus paucis, upiruli 

 minuto, aperturd angustinsciild, infra sidi'irnmi- 

 natd ; labia externa superne sinuatim produrt,,. 



The Staefish Stylifer. Shell ovate-globose ; spire 

 short, acuminated, whorls few, apical minute ; 

 aperture rather narrow, slightly pointed below, 

 outer lip sinuously produced above. 



Beoderip. Sowerby's Conchological Manual, f. l'2-i;v 



,S7////>V/- llmderipii. Adams. 



Hab. Galapagos. 



Species 4. (Mns. ?) 



Stylifer Guentheei. Sty. trstd ,,ioJiisrii!d, furritd, 



pyrnmidatd; apice prn,h,rt,, .,r,n.u,n,fn, . ,fn,r. 

 tibiis gradatis, SHpcni;' ajignhdis, idtinu, „i,uju,., 

 globosa, injlata ; simt, calwiiellari retrursiin exten.si,. 



Gunther's Stylifer. Shell rather large, turretcd 

 pyramidal ; apex produced, acuminated, whorls 

 step-like, angular above ; last large, globose, 

 inflated ; columellar sinus extended back- 

 wards. 



Angas (Apicalia). Proc. Zool. Soc. 1877, PL ^'. f. <•. 



Hab. New South Wales. 



A singularly formed shell, partaking the characters 



of the globose and subulate sections 



Species 5. (Mus. Brit.) 



Stylifer Cuminoiana. Sty. testd pyramidatd, spird 

 altd., acuminatd ; anfractibus niiinerosis, depressis, 

 apicalibus trinis nut qnafmii^: atleiinatis, .•ityli- 

 formibus, ultiiim injlato, rutundc, :ipcrtur<! hreui, 

 cohmielld rei'tiiisciild. 



CuMrNG's Stylifer. Shell pyramidal, spire raised, 

 acuminated ; whorls numerous, depressed, three 

 or four apical attenuated, styliform, last inflated, 

 round, aperture short, columella rather straight. 



Adams ? MS. Cum. Coll. 



Hab. ? 



