GASTEROPODA. BULLADZ. 37 
the male organs of generation. The intestines, and the liver 
which surrounds them, are placed under the shell. The ovaries 
occupy the region of the spire, and their duct passes out on the 
right side, near the exit of the male organ. 
As I have not had an opportunity to examine all the genera 
of this family in a living state, I must refer to the admirable 
details contained in Cuvier’s tenth memoir, entitled ‘ Sur les 
Acéres.”’ 
STIRPS I. 
Genus 15. BULLMA. 
Bulleea, Lemarck. 
Lobaria, Miiller. 
Testa fragilis, subpellucida, spira abscondita, apertura tota 
hians, umbilicus nullus. Labiwm superius ad dorsi fere medium 
productum. Ventriculus testis tribus calcareis instructus : 
duabus lateralibus elongato-triangularibus; superiore acuto- 
rhomboidali, omnibus externé concavis. Penis longissimus, 
filiformis. 
Shell thin, nearly pellucid, its spire hidden, the whole aper- 
ture gaping, no umbilicus. Upper lip produced almost to the 
middle of the back. Stomach armed with three externally- 
concave calcareous shells ; the two lateral ones elongate-trian- 
gular ; the upper one acutely rhomboidal. 
This genus was first noticed by Fabius Columna, in his tract 
de Purpura, and afterwards by Janus Plancus, who named it 
Amygdala marina (Sea Almond), and figured its stomach. 
The dilated lip, the foot embracing the two sides, and the 
hinder part containing the shell, give to the animal a quadrilo- 
bate appearance, which suggested the name Lodaria to Miiller, 
who did not perceive its affinity with the other members of this 
family. 
1. Butu#a PLANCIANA. 
B. testa subrotunda, transversiim striolata. 
Bulla aperta, Pult. Cat. Dorset. 40. t. 22. fig.3; Donov. Brit. 
Shells, t. 120. fig. 1; Mont. Test. Brit. 208. 
