﻿P L A x\ A X I S. 



Species 1/. (Mus. Hauley.) 



Plaxaxis suTUKALis. Phi. testd parvd, alhii, cnLs-xt/ls- 



r.uj,!, tarritd, jiymmidiUii, npice acuialaato ; an- 



frarHbiis sc-ptenis, .■^iifurd ,:rr.jr<itd sfpnmtis, qnm- 



litrr jjnifiiiidc suJrah's, ^I'l.rni,'' ,niijul(itis, inter 



ihumlis, CohmirU., 



iter callo 



lab, 



driitibn, i,>trrnisi;ri/o,;Hibnsdrrem. 



TuE suTUHAL Planaxis. Shell small, white, rather 

 thick, turreted, pyramidal ; apex acuminated ; 

 whorls seven, separated by a deep suture, spirally 

 dco]:)ly grooved, angular above, flat between the 

 grooves ; columella shortly callous above, pos- 

 terior canal short ; aperture short ; outer lip 

 thick, inner ridge-shapcd teeth ten. 



Smitu. Proc. Zool. Soc. 1872. 



llab. Chinese Seas. 



Species 18. (Mus. Brit.) 

 Planasis ATEE. Phi.jjarrd, ohldiiijo-pyniinidald, niijrd, 

 obscurissiiiiefiisrbif,! ; !<plrd rh,:i,i,il,!, runio'i, <ni- 

 fradibus sou's, hitrmlitrr sHh,;:„ii,!iiii,:llx, idfiiiin 

 mnjnscidii ; apertnrd ji'"''''', brcvitir siiblriijnnd, 

 inti'is septem-liratd; canali postioi iiuUn. 

 Tee dark Planasis. Shell small, oblong-pyi-amidal, 

 black, very obscurely banded ; spire elongated, 

 conical, whorls six, laterally rather flat, last 

 i-ather large ; aperture small, shortly subtrigonal, 

 with seven internal ridges ; no posterior canal. 

 Pease. {Atnt.) American Journ. of Conchology. 

 Uiib. Marque-sas Islands. 



In the obscurity of the dark colouring, light in- 

 terstices of dark lines can lie traced ; and the species 

 somewhat resembles the more obscure varieties of 

 Plauaxis I i neat, I. 



Species 19. (JIiis. Hanley.) 

 Planasis abbeeviatus. I'll, fe^ld iiiijrd, Icevigatd, 

 siibooatd, brevi; spin! brrrlssiui'!, aiifractibiis qua- 

 feniis, ultimo nia.riiih:, iiifrii qiiiiiqnc.sidcato,aper- 



tnrd inupin- ,ii.,r.',rr,<ti, imnjud, iutn.-: tenuiter 



liratd, c<taaU ii.^fir.. hitinsodn. 

 The abbreviated Plaxaxis. Shell black, smooth, 

 subovate, short ; spire -very short, whorls four, 

 last large, five-grooved below; aperture blackish- 



pnrple, large, finely ridged within, posterior canal 



rather wide. 

 Pease. {Abhr.:vi,ita.) Proc. Zool. Soc. 18Go, p. -Mo. 

 Hab. Sandwich Islands. 



Considerably shorter in the spire than rhmu.cis 

 ni'jer oi Guoy, which it otherwise much resembles. 



Species 20. (Mus. Hanley.) 

 PlANAXIS LIXEATUS. I'hi. ti'sld parvd, njijoiiija-iajra. 

 ,„idat.!, f,drd rrl ;„-/V,w. rarir si.iralitrr nda:. rrl 

 ,u.,ras,dralilrrli„..,ldrl/a.n„td.s,.;rd,h„n,„td, 

 a,:„,„!„al.K .,„frnri;b.. .mi. ad s,pfr,a,.. qnat.or 

 prinii. sidratn-liralis : aprrfnrd brrri, s,d,tri,jn„d, 

 intii. dista.it, r ,L^„lat...li,;ifd, ,:,uadi pasfica ,ndU,. 

 The i.ixeated Planaxis. Shell small, oblong-pyra- 

 midal, fulvous or grey, variously spirally lined 

 and banded ; spire elongated, acuminated, whorls 

 six or seven, first four groove-ridged ; aperture 

 short, subtrigonal, distantly tooth-ridged within, 

 n(_) posterior canal. 

 Costa. (Ihnu-imuu.) Brit. Conch, p. 130. 

 J',ii,:i:iiiiiiii pi:i!i,-idare. Lamarck. 

 llab. West Indies. 



This well-known West Indian shell was first de- 

 scribed by Da Costa as British. A foreign specimen 

 must have- come into his hands by mistake. 



Species 21. (Mus. Hanley.) 



Planaxis succiuctus. Pla. testd jjarvd, ovato-pijranii- 

 datd, fulvd subdistaiUer tenuiter ruhro-lineatil ; 

 spird subelevatd, acuminata; anfractibus seat., 

 ciynvcniiscidis, siqwrioribus lira.to-sulcatis ; aper- 

 turd breviiiscidd, laid, iidiis liratd, caiiali postico 

 nnlh. 



The line-girt Planaxis. Shell small, ovately pyra- 

 midal, fulvous, rather distantly, finely red-lined ; 

 spire slightly elevated, acuminated; whorls six, 

 rather convex, upper groove-ridged; aperture 

 rather short, broad, ridged within ; no posterior 

 canal. 



A. Adams. Proc. Zool. Soc. 18-Jl, p. 272. 



Hab. West Indies. 



The lines are thinner and more distant, the whorls 



are more rounded and the spire is shorter in pro- 



