12 



Bulletin 30 



438 



Amauropsis Guppyi Gabb. Pitaria planivieta Gpy. 



Neritina virideinaris, n. sp. Chione Woodwardi Gpy. 



Phasianella punctata Gabb. Chione cf. Walli Gpy. 



Turbo dominicensis Daloi, n. var. Sernele Claytoni, n. sp. 

 Corbula vieta Gpy. 



Affinities of the Bluff 2 Fauna. — Of this list 64 per cent oc- 

 cur in Bluff 3, 40 at Bowden and 13 in Bluff 1. The reciprocal 

 percentages are 15 to Bluff 3, 3 to Bowden, 1 to Bluff 1. That 

 is, Bluffs 2 and 3 are linked together closely and have a bond 

 with Bowden, but are sharply set off from Bluff 1. 



Literally millions of Amphistegina are present in Bluff 2. 



Fauna of Bluff 3. — The following species were collected at 

 Bluff 3, Cercado : 



List of Species 



Cavolina near gibbosa R. 

 Acteon riomaensis, n. sp. 

 Acteocina canaliculata Say. 

 Acteocina recta d'Orb. 

 Acteocina triticum-tritonis, u. sp. 

 Volvula cylindrica Gabb. 

 Retusa yaquensis, n. sp. 

 Atys doliolum, n. sp. 

 Bullaria paupercula Sby. 

 Ringicula dominicana, n. sp. 

 Terebra spirifera Dall. 

 Terebra cirrus Dall. 

 Terebra oligornitra Dall. 

 T. gausapata laevifasciola, n. var 

 Terebra Cambiarsoi, n. sp. 

 Terebra gatunensis Toula. 

 Conus rnolis B. and P. 

 Conus cercadensis, n. sp. 

 Conus recognitus Gpy. 

 Turris albida Perry. 

 Drillia Henekeni Sby. 

 Drillia maonisriparum, u. sp. 

 Mangilia maoica, n. sp. 

 Mangilia Lalonis, n. sp. 



Niso grandis Gabb. 

 Pyramidella canaliculata Gabb. 

 Pyramidella semicanaliculata, n. sp. 

 Pyramidella diademata, n. sp. 

 Pyramidella Olssoni, n. sp. 

 Pyramidella cercadensis, n. sp. 

 Pyramidella Arionis, n. sp. 

 Turbonilla Ogilviese, n. sp. 

 Turbonilla yaquensis, n. sp. 

 Turbonilla cercadensis, n. sp. 

 Turbonilla dominicensis Gabb 

 Turbonilla Karlschmidti, n. sp. 

 Turbonilla Olssoni, n. sp. 

 Turbonilla turritissima Gpy. 

 Turbonilla riomaoensis, n. sp. 

 Turbonilla turritelloides Gabb. 

 Turbonilla Nanniebellae, n. sp. 

 OdostomiaSancti-Dominici, n. sp. 

 Odostomia yaquica, n. sp. 

 Neritina viridemaris, n. sp. 

 Phasianella punctata Gabb. 

 Astralium sublongispinum, n. sp. 

 Astraliutn Karlschmidti, n. sp. 

 Circulus striata Gabb. 



