PYRULA. 
Puare VII. 
Species 21. (Mus. Cuming.) 
Pyruta rapa. Pyrul. testa pyriformi, ventricosissimd, 
tenui, subpellucidd, spird plano-depressd, anfractibus 
rotundatis, transversim liratis, liris rotundatis, obsolete 
squamatis ; canali plus minusve elongato ; luteo-albidd. 
THE RAPE PyruLa. Shell pyriform, very ventricose, thin, 
somewhat transparent, spire flatly depressed, whorls 
rounded, transversely ridged, ridges rounded, obso- 
letely squamate ; canal more or less elongated; yel- 
_lowish white. 
Bulla rapa, Linneus, Syst. Nat. (12th edit.) p. 1184. 
Pyrula papyracea, Lamarck. 
Hab. Island of Ticao, Philippines (among coral sand) ; 
Cuming. 
The chief variation in the growth of this species con- 
sists, in some specimens being closely spirally ridged 
throughout, whilst others are smooth or ridged only at the 
base. 
Species 22. (Fig. 22 and 23, Mus. Cuming.) 
PyruLa GALEODES. Pyrul. testé ovato-pyriformi, subven- 
tricosd, undique spiraliter liratdé basin versus contract, 
spird acutd, compresso-tuberculatd, suturis profundis, 
erecto-squamatis, anfractu ultimo vel rotundato mutico, 
vel angulato squamarum seriebus duabus tribusve 
armato ; fuscd, liris saturatioribus, apertura lutescente. 
THE HELMET-LIKE PyruLa. Shell ovately pyriform, 
somewhat ventricose, spirally obtusely ridged through- 
out, contracted towards the base, spire sharp, com- 
pressly tuberculated, sutures deep, erectly squamate, 
last whorl either rounded and free from scales, or 
armed with two or three rows; pale brown, ridges of 
a darker brown, aperture yellowish. 
Lamarck, Anim. s. vert. (Deshayes’ edit.) vol. ix. p. 517. 
Varietates, Pyrule angulata and squamosa, Lamarck. 
Pyrula hippocastanum, Enc. Méth. 
Murex calcaratus, Dillwyn. 
Hab. Island of Samar, Philippines (at roots of Mango 
trees); Cuming. 
There is little doubt but that the P. galeodes, angulata 
and sguamosa of Lamarck are varieties of the same species, 
illustrative of different growth as already noticed in the P. 
melongena and Paradisiaca. 
For fig. 23, see Plate IX. 
Species 24. (Mus. Brit.) 
PyrvuLa BUCEPHALA. Pyrul. test ovato-pyriformt, trans- 
versim spiraliter liratd, liris anfractis ultimi plus 
minusve obsoletis, anfractibus superne angulatis, seriebus 
duabus tuberculorum fortium prominentium armatis, 
tuberculis seriet superioris multo majoribus ; luteo- 
aurantid, epidermide fibrosd induta. 
THE BUCEPHALOUS Pyruxa. Shell ovately pyriform, 
transversely spirally ridged, ridges of the last whorl 
more or less obsolete; whorls angulated round the 
upper part, armed with two rows of prominent tuber- 
cles, of which the lower row is much the larger; 
yellowish orange, covered with a fibrous epidermis. 
Lamarck, Anim. s. vert. (Deshayes’ edit.) vol. ix. p. 508. 
Hab. Mexico. 
Chemnitz figures this species in the ‘Conchylien 
Cabinet’ with the title Murex carnarius, apparently con- 
founding it with the species described under that name by 
his predecessor Martini, which is an orange-tinted variety 
of the Pyrula pugilina; and Dillwyn followed the same 
mistake by calling the species under consideration Murex 
pugilinus, var. 
July, 1847. 
