AURINIA, MAMILLANA, LYRIA, 101 



[Sect. 15. Aurinia, H. and A. Adams. 



Shell oval-fusiform ; spire terminated by a large mamillary 

 summit ; columella with obsolete, scarcely apparent plications ; 

 whorls of the spire finely transversely striated ; lip simple, thin. 

 This group was proposed for F. dubia, Brod., known only to 

 Messrs. Adams and Crosse from juvenile examples. The species 

 is closely related to, if not identical with, V. Junonia, and 

 follows that species in this monograph ; Aurinia, consequently, 

 will not stand.] 



Sec r . 15. Mamillana, Crosse. 



Shell widely oval, ventricose, rather thin, intermediate between 

 Voluta and Gymbium ; nucleus papilliform, very strongly devel- 

 oped, excentric and lateral ; columella with a few oblique plicae ; 

 lip thin, 



Y. MAMILLA, Gray. PL 29, fig. 122. 



Yellowish, strigated with brown. Length, 6-8 inches. 



Tasmania; Australia. 



The first whorl of the spire is completely lateral in this 

 species, as in F. rupestris. 



Undetermined Species. 



Y. NANA, Anton. Belongs to Vespertilio group. No locality 

 given. 



Y. LARGILLIERTIANA, d'Orb. (Related to F. pallida, Gray.) 



Seas of India. 



Y. PUMILIO, Brusina. Dalmatia. 



Not figured. Shell ovate, transversely closely striate ; spire 

 very short, apex obtuse ; lip simple, acute ; columella sub- 

 uniplicate. I do not know where to place this species ; it is 

 certainly not a Voluta. Length, t-16 mill. 



Y. MOLTKIANA and Y. SPENGLERIANA, Martini, H. and A.Adams' 

 Genera, i, 161. 



^enus LYRIA, Gray. 



Dr. Paul Fischer, who has studied the anatomy of Lyria 

 deliciosa* finds it to be essentially the same as that of Voluta, 



* Jour, de Conch., xv, 355, 1867. 



