134 BUCCINIDA. 
whilst tortuous as in Fasciolaria, it has at most a single fold in 
lieu of the plaits on the columella of that genus. I have arranged 
the subfamilies and genera, commencing with those most closely 
allied to Fusus, and terminating with the truly buccinoid forms. 
Although the range of form is great, it will be seen that the 
transitions are not abrupt; and in this case the lingual dentition 
affords confirmation of the grouping adopted upon conchological 
grounds. 
Subfamily MELONGENIN®. Shell pear-shaped, heavy ; spire and 
canal short. 
Subfamily Nnepruntina. Shell rather thin, pear-shaped or 
ovate; canal moderate and twisted. 
Subfamily pisaniun#. Shell small, heavy, costate; canal very 
short and wide, outer lip thickened, dentate within ; columella 
callous or rugose. 
Subfamily puccinin#®. Shell rather thin, costate or smooth, 
ovate, covered with a horny epidermis; aperture very large, lip 
thin, smooth within, terminating below in a short oblique notch. 
Subfamily EBURNINa. Shell thick, smooth, ovate-oblong ; 
deeply umbilicated or umbilicus covered by a heavy callus; 
outer lip simple acute. 
Subfamily pHotin#. Shell small, smooth, costate or cancellate, 
ovate or turreted, thick; outer lip striate within; canal short 
and wide, columella twisted below. 
SusprFAMILY MELONGENIUINA. 
MELONGENA, Schum. 
Syn.—Cassidulus, Ads. Galeodes, Bolt. Mancinella, Mus. 
Berl. Myristica, Swn. Pugilina, Schum. Volema, Bolt. 
Distr.—11 sp. West Indies, Panama, Red Sea, Philippines, 
Australia, Polynesia. J. corona, Gmel. (xlix, 3). 
Shell pyriform, solid, dark-colored or banded; spire short, 
nodulose, spiny ; aperture oval-oblong; canal short, open; colu- 
mella smooth; outer lip simple. Operculum solid, claw-like, 
nucleus apical. 
Kobelt, in his monograph of Pyrula (Conchylien Cabinet), 
adopts that genus, taking as subgenera Cassidulus (= Melon- 
gena), Myristica, Pugilina, Volema and Hemifusus. These 
groups which (except the last) are too closely related concho- 
logically as well as by their lingual dentition, Troschel also 
places together, but without subordinating them to a higher 
group. Pyrula would, indeed, be an excellent name on account 
of its acceptance years ago for the major part of the species, but 
unfortunately the first and only species cited by Lamarck in his 
original description of the genus is the Bulla ficus, Linn., which 
