PLEUROTOMA.— Plate I. 



natd, carinis maculis parvis rubido-fuscis vivide pic- 

 tis ; anfractibus convexis, macularum grandium serie 

 superne ornatis; anfractu ultimo infrdfusco-fasciato; 

 camli plus minusve elongato. 

 Garnons' Pleurotoma. Shell elongately turrited, slen- 

 der, fusiform, whitish, transversely keeled, keels 

 vividly painted with small reddish hrown spots; 

 whorls convex, ornamented round the upper part 

 with a row of large square brown spots or patches ; 

 last whorl with a brown band round the lower part, 

 it being concealed in the rest by the natural deposit 

 of one whorl upon the other ; canal more or less 

 elongated. 



Pleurotoma Babylonia, var. Kiener. 

 Hab. Island of Zebu, Philippines. 



We have much pleasure in dedicating this species to 

 our excellent friend the Rev. W. L. P. Garnons, F.L.S. 

 &c. The labour which this worthy gentleman has be- 

 stowed on the arrangement of the Woodwardian collec- 

 tion of shells at Cambridge bears ample testimony of his 

 zeal for the science. 



Several specimens of this shell have lately made their 

 appearance in London, but we are not aware from whence 

 they have arrived. The above locality is quoted from a 

 single specimen found by Mr. Cuming at that place lying 

 dead upon the shore at low water. 



Species 5. (Mus. Cuming.) 

 Pleurotoma Babylonia. Pleur. testdfusiformi-turritd, 



transversim carinatd et cingulatd, albd ; cingulis ni- 



gerrimo-maculatis ; maculis quadratis ; anfractibus 



convexis; canali longiuscuhi. 

 The Tower of Babel Pleurotoma. Shell fusiformly 



turrited, transversely carinated and belted, white ; 



belts ornamented with very black square spots; 



whorls convex, canal rather long. 

 Lamarck, Anim. sans vert., vol. vii. p. 94. Encyclopedie 



Methodique, pi. 439. f. 1. a, b. 



Murex Babylonius, Linnaeus. 

 Hab. Moluccas, Philippines, New Guinea, &c. 



The spots which ornament this shell are peculiar in 

 being very black and very distinctly picked out ; in some 

 specimens (as in the one here figured) they are large and 

 somewhat distant from each other, whilst in many they 

 are numerous, smaller, and more thickly set. 



Species 6. (Mus. Stainforth.) 



Pleurotoma spectabilis. Pleur. testd snbelongato-tur- 

 ritd, multicingulatd ; albd, cingulis nigro-maculatis, 

 maculis grandibus et parvis, numerosissimis ; anfrac- 

 tibus convexis, supra et infra fusco-fasciat is ; canali 

 brevi, leviter flexuosd. 



The handsome Pleurotoma. Shell rather elongately 

 turrited, many -belted ; white, belts black spotted, 

 spots large and small intermixed, very numerous ; 

 whorls convex, brown banded above and below ; 

 canal short, slightly flexuous. 



Hab. Island of Ticao, Philippines (on the reefs). 



The spotting is of a more numerous and miscellaneous 

 character in this species than in any of the genus, though 

 it presents in certain respects a modification of that in 

 the Pleurotoma Garnonsii. The dusky band which girds 

 the lower portion of the whorls in that species is ex- 

 hibited both round the lower and upper portions in this, 

 and the number of spots is apparently doubled in like 

 manner ; the canal is short, and presents a great pecu- 

 liarity of character. 



Species 7. (Mus. Stainforth.) 



Pleurotoma cryptorrhaphe. Pleur. testd gracillime 

 turritd, transverse striatd, umbilicatd, fusco-olivaced, 

 aperturd purpureo-tinctd ; anfractibus bicarinatis, su- 

 turis profundi impressis ; labro externo leviter fim- 

 briato, canali brevi, subtortuoso. 

 The deep-sutured Pleurotoma. Shell very slenderly 

 turrited, transversely striated, umbilicated, dark 

 olive-coloured, aperture stained with purple ; whorls 

 doubly keeled, sutures deeply impressed; outer lip 

 slightly fimbriated ; canal short and somewhat 

 twisted. 

 Sowerby, App. Tankerville Catalogue, p. xiv. 

 Reeve, Conch. Syst., pi. 234. f. 15. 

 Murex bicarinatus. Wood. 

 Pleurotoma Woodii, Kiener. 

 Hab. Island of Masbate, Philippines (on the reefs at low 

 water) . 

 This shell is at present very rarely to be met with in 

 fine condition, the specimen here figured is the only per- 

 fect one I remember having seen. 



