PYRULA. 
Puate VIII. 
Species 25. (Mus. Cuming.) 
Pyruta Maw. Pyrul. testé pyriformi, ampliter umbi- 
licatd, plus minusve evolutd, anfractibus spiraliter 
striatis, superné latissimé plano-depressis, acute angu- 
latis, ad angulum compresso-squamatis, squamis inflexis, 
anfractibus inferné contractis, basi extrema squamatis ; 
albé aut pallidé rosacea. 
Mawen’s Pyruta. Shell pyriform, largely umbilicated, 
more or less unrolled, whorls spirally striated, very 
broadly flatly depressed round the upper part, sharply 
angulated, compressely squamate at the angle, scales 
bent inwards, whorls contracted at the lower part, 
squamate at the extreme base; white or pinkish. 
Gray, in Griffith’s Cuvier, An. King. pl. xxv. f. 3, 4. 
Hab. China. Cagayan, Province of Misamis, Island of 
Mindanao, Philippines (found in sandy mud at the 
depth of twenty-five fathoms); Cuming. 
The growth of this remarkable shell, is similar to that 
of the P. buléosa on an exaggerated scale. 
Species 26. (Mus. Brit.) 
PYRULA cANALIcULATA. Pyrul. testé pyriformi, basi 
elongata, tenui, superne ventricosd, anfractibus spira- 
liter obsoleté obtuse liratis, superné plano-decliwibus et 
angulatis, ad angulum margine incrassato, interdum 
eximié noduloso, spire suturis peculiariter profunde 
canaliculatis ; fulvo-cinered, epidermide setosd indutd. 
THE CHANNELLED Pyruza. Shell pyriform, elongated 
at the base, thin, ventricose at the upper part, whorls 
spirally obtusely ridged, flatly slanting and angulated 
at the upper part, edge at the angle thickened, some- 
times delicately noduled, sutures of the spire pecu- 
liarly deeply channelled; fulvous ash-colour, covered 
with a fine bristly epidermis. 
Lamarck, Anim. s. vert. (Deshayes’ edit.) vol. ix. p. 504. 
Murex canaliculatus, Linneus. 
Hab. Massachusetts, United States; Gould. 
The nodules which characterize the angle of the whorls 
of this species, in an early stage of growth, mostly become 
obsolete with age. The broad excavated canal passing 
round the sutures of the spire is curious, and so also is 
the epidermis, which consists of a number of fine erect 
bristles, sprouting up from the spiral ridges with the 
utmost regularity. 
M.M. Schubert and Wagner, in their Supplement to 
Chemnitz, confounds this and the Pyrula spirata together ; 
likewise M. Kiener, with the following observations,— 
“the P. spirata and canaliculata of Lamarck, are so closely 
allied, that I cannot discover any character sufficiently 
constant to distinguish them; the differences which have 
been remarked by authors are only due to sex or locality”! 
Whatever doubt may exist as to which of the two is the 
original Murex canaliculatus of Linneus, there can be none 
as to their being distinct from each other; the P. spirata 
is a tropical species inhabiting the coast of Mexico. 
Dr. Gould observes, in reference to the locality, Canada 
and the Arctic Seas, usually cited for this species, that 
“Cape Cod is probably its northernmost limit.” 
Species 27. (Mus. Cuming.) 
Pyruta sprrata. Pyrul. testé oblongo-pyriformi, basi 
elongatd, spird depressd, suturis declivi-canaliculatis, 
anfractibus spiraliter undigue creberrimé  striatis, 
superné rotundatis, vie angulatis; aperture fauce 
superné radiatim liratd, cerulescente-alba, fasciis rufo- 
fuscis longitudinalibus et transversis vivide pictd. 
THE sPIRAL Pyruta. Shell oblong-pyriform, elongated 
at the base, spire much depressed, sutures channelled 
in a slanting manner, whorls very closely spirally 
striated throughout, rounded and scarcely angulated 
round the upper part; interior of the aperture 
radiately ridged at the upper part; blueish white, 
richly painted with transverse and longitudinal red- 
dish brown bands. 
Lamarck, Anim. s. vert. (Deshayes’ edit.) vol. ix. p. 512. 
Murex pyrum, Dillwyn. 
Hab. Gulf of Mexico. 
This interesting species approaches in form to the 
Ficule. From P. canaliculata, it may be discriminated 
by the commonest observer. 
Species 28. (Mus. Cuming.) 
Pyruta tineatTa. Pyrul. testé abbreviato-pyriformi, valdé 
inflata, spird parva, depressd, feré occulta ; columella 
excavatd, basi contortd; albidé, strigis rufo-fuscis 
notatd, prope columellam pulcherrimé violaced. 
THE LINEATED Pyruxa. Shell abbreviately pyriform, 
very inflated, spire small, depressed, nearly hid ; colu- 
mella excavated, twisted at the base; whitish, marked 
longitudinally with red brown streaks, beautifully 
violet next the columella. 
Lamarck, Anim. s. vert. (Deshayes’ edit.) vol. ix. p. 520. 
Buccinum bulbus, Wood. 
Pyrula elata, Schubert and Wagner. 
Hab. 2 
An extremely rare, beautiful, and very characteristic 
species, which cannot well be confounded with any other. 
July, 1847. 
