THE NAUTILUS. 83 



GASTROPODA. 



Helix apicina Lk. On the ground. 



Helix barbula Charp. On plants and cacti. Puerto Real. 



Helix lactea Mull. Common at the roots of. dwarf palms. Near 

 Puerto Real. 



Helix marmorata Fer. Ascends walls of houses at Port Mary, 

 doubtless feeding on lime. 



Helix nemausensis Bgt. One example. 



Alexia myosotis Drap. Puerto Real, on mud flats, dead. 



Alexia firmini Payr. Two Examples. Puerto Real. 



Siphonaria algesirae Q. & G. Beaches. Not rare. 



Bulla striata Brug. From the number of dead shells this must 

 live in the bay. 



Haminea elegans Leach. Several. 



Conus mediterrauea Hw. Not plentiful. 



Mangilia vauquelini Payr. Brown-banded form. 



Surcula undatirugata Biv. Mrs. Whishaw. 



Clathurella linearis Mtg. A distinct little species. 



Margin ella miliaria L. Numerous in drift. 



Marginella philippii Mont. With the latter. 



Cymbium olla L. Mrs. Whishaw, several. 



Pisania maculosa Lk. Not common. 



Pisania d'orbignyi Payr. Mrs. Whishaw. Finely colored. 



Euthria cornea L. Mrs. Whishaw. Nassa corniculum Oliv. A 

 few. 



Nassa corniculum raricostata Risso. Aperture violet. 



Nassa incrassata Mull. A common orange-colored shell. 



Nassa mutabilis L. Minor torm. 



Nassa reticulata L. Plentiful in muddy stations with the following : 



Cyclonassa neritea L. Alive in vast numbers. 



Cyclonassa pellucida Risso. A single specimen. 



Columbella rustica L. Mrs. Whishaw, several. 



Murex brandaris L. Apparently rare. 



Murex erinaceus L. Many worn shells, seldom fresh. 



Purpura haemostoma L. In a semi-fossil condition near Puerto 

 Real. 



Lotorium cutaceus L. The three of this family from fishermen. 



Lotorium corrugatum Lk. Lotorium nodiferum Lk. 



(To be continued.} 



