AGARONIA. 89 



and maculations, or faintly nebulous, the markings being nearly 

 obsolete ; suture sometimes with fasciculations, frequently 

 reduced to a row of spots, still more frequently unspotted ; 

 fasciole and fasciolar band yellowish or fawn-color, sometimes 

 with faint, close, orange-red strigations ; columella white ; interior 

 of aperture white, maculated with chestnut on the lip-border. 



Length, l'5-3 inches. 



Senegal, Gambia, Java, Philippines, Australia. 



Dr. Weinkauff complains that his predecessors in attempting 

 to separate 0. acuminata and 0. subulata, have mistaken them 

 one for the other, and he has taken the trouble to unravel the 

 intricate synonymy, in order to thoroughly distinguish the two 

 species. Having carefully examined their respective characters 

 both in descriptions, figures and specimens, I am convinced that 

 no good reason exists for treating them as distinct, and that 

 several additional " species " must likewise be added to the 

 synonymy. Fig. 11 represents 0. subulata, Lam., as defined by 

 Weinkauff; it appears more slender, with more elevated spire 

 than some of the figures representing 0. acuminata, but every 

 intermediate form may be selected from the specimens before 

 me. I place here 0. modesta, Reeve (fig. 77), a young shell, 0. 

 annotata, Marr. (fig. 78), and 0. carita, Marr, (figs. 79, 80), also 

 juveniles, and 0. Bartlielemyi, Ducros (fig. 76, \ 



O. LABUANENSIS, Marrat. PI. 35, fig. 81. 



Yellowish white to orange-color, with an orange-red or brown 

 broad band covering the lower half of the body-whorl, sutures 



fasciculated with brown. Length, 1-1-25 inches. 



Borneo. 



This may be only a variety of 0. nebulosa, yet I think it has 

 as good claims to specific distinction as most of the species. 



O. LIGNEOLA, Reeve. PI. 35, fig. 82. 



Cone-shaped ; chestnut, the fasciole lighter, with chestnut 

 markings, columella white, aperture bluish. Length, 1 inch. 



Habitat unknown. 



I am not acquainted with this species ; Marrat has omitted it, 

 and Weinkauff has copied Reeve's figure and description. 



O. NEBULOSA, Lam. PI. 35, figs. 83, 84. 



Subcylindrical, spire moderately elevated ; cream-color, with 

 12 



