TURRITELLA, 



Species 36. (Mus. Cuming.) 



TuKRiTELLA Hanleyana. Turr. testa acuminato-pyra- 

 niidali, ad basin angulata et plano-cowcavd, anfractibtis 

 quatuordecm, plano-dedmbus, spiraliter quadriUratis 

 et striatis, bad 7narginatu ; sordide laded, macuUs 

 nigricantibics itidistiiictis oblique tinctd. 



Hanley's Turritella. Shell acuminately pyramidal, 

 augulated and flatly concave at the base, whorls 

 fourteen in number, flatly slanting, spirally four- 

 ridged and striated, margined round the base ; dull 

 cream-colour, obliquely stained with indistinct 

 blackish spots. 



Hah ? 



An extremely characteristic species both in respect of 

 form and sculpture. Mr. Metcalfe also possesses a specimen. 



Species 37. (Mus. Metcalfe.) 



Turritella clathrata. Ttirr. testa lanceolafu-acimti- 

 nafd, aiujmtd, solidiusculd, anfractibus ododecim, pla- 

 naiis, Itevibus, dimidio iiiferiori fortiter bicarinalis ; 

 fulvo-castaned, aurantio-fusco obscure maculatd, carinis 

 pallidioribiis. 



The cross-barred Turritella. Shell lanceolately 

 acuminated, narrow, rather soUd, whorls eighteen in 

 number, flattened, smooth, strongly two-keeled upon 

 the lower half; fulvous chestnut, obsciu-ely spotted 

 with orange-brown, keels paler. 



KiENER, Icon. coq. viv. p. 38. pi. 14. f. 1. 



Eab. ? 



Distini-uishcil l)y its very narrow acuminated growth, 



and smooth bold pair of keels. 



Species 38. (Mus. Banks. Soc. Linn.) 

 Turritella Candida. T//rr. testd acmninato-turritd, an- 

 fradibiis ododecim, xpinililrr slrinlix, xnjienie bicari- 

 nalis; medio coiicriri\, i/,-i,ii/r inmuriihitis, (iiifradn 



ultimo et 'pewdti' 



um.dr, 



excavalis , 



iiived, immaculatd. 

 The white Turritella. Shell acuminately turre- 

 ted, whorls eighteen in number, spirally striated, 

 two-keeled round the upper part, concave in the 

 middle, then ench'cled with a single keel, last whorl, 



and last but one, four-keeled, sutures excavated; 

 snou-y white, unspotted. 

 Uab. ? 



A delicate semi-transparent white species of which I 

 have seen two very characteristic specimens ; one in Mr. 

 Cuming's collection and the other in the Banksian cabinet 

 of the Linnsan Society. Amongst the shells collected by 

 Sir Joseph Banks, preserved in this Museum, are many 

 interesting species. 



Species 39. (Fig. a, Mus. Cuming. Fig. b, Mus. Walton.) 



Turritella punctata. Turr. testd subpyramidali-acu- 

 minatd, crassiusadd, basi fortiter costatd, anfractibus 

 quitidecim, spiraliter strialis, carinalis et concavis, 

 inferne tumidis, carinis granatis ; albidd, purpureo- 

 fusco profuse punctata, maculatd, et variegatd. 



The dotted Turritella. Shell somewhat pyramidally 

 acuminated, rather thick, strongly ribbed at the base, 

 whorls fifteen in number, spirally striated, keeled and 

 concave, swollen round the lower part, keels grained ; 

 whitish, profusely dotted, blotched, and \ariegated 

 with purple-brown. 



Kiener, Icon. coq. viv., p. 19. pi. xi. f. 3. 



Hab. ? 



The keels are somewhat irregular in this species, but it 

 is constantly distinguished by a slight sn-elling out of the 

 base of each whorl. The upper part of the whorl is 

 always more or less concave with a smaller keel or ridge 

 in the concavity. 



Species 40. (Mus. Cuming.) 



Turritella spectrum. Turr. testd douyalu-turritd, 

 teuuiculd, anfractibus ododecim, rotundatls, primis 

 sex-carinatis, deinde duodecim-carinatis, caiiuis e.ri- 

 libus, gradatim sublilioribus ; semipdlucido-albicanlc, 

 anfractuum parte superiori fucescente tindd. 



The spectre Turritella. Shell clongately turreted. 

 rather thin, whorls eighteen in number, rounded, the 

 first six-keeled, then twelve-keeled, keels delicate, 

 gradually finer; semitrausparent white, upper part 



rd « ith br 



Hah. 



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