28 



BUI.LKTIN 39 



300 



Drillia consors Sowerby 

 Drillia venusta Sowerby 

 Cancellaria Barretti Guppy 

 Oliva cylifidrica Sowerby 

 *Latirus irifundibidum Gmelin 

 Melongena consors Sowerby 

 Metula cajicellata Gabb 

 Typhis alatus Sowerby 

 Distortrix simillima Sowerby 

 Bursa crassa Dillwyn 

 Cassis siilcifera Sowerby 

 Scoiisia sublcsvigata Guppy 

 Strombus pugiloides Guppy 



Venericardia scabricostata Guppy 

 Myrtcsa limoniana Dall 

 Phacoides adinus Dall 

 '''LcEiiicardium serratum I^inne 

 Cy there a Blandiana Guppy 

 Tellina lepidota Dall 

 '^'Strigilla pisiformis lyinne 

 Abra triangulata Dall 

 Corbula viminea Guppy 

 Gastroch(sna rotunda Dall 

 Phalium moniliferum Guppy 

 Malea camura Guppy 

 Serpulorbis pap^dosa Guppy 



MEXICAN MiOCKNK 



From Mexico, Bosef has described several small faunas 

 from the Isthmus of Tehuantepec, and from the States of 

 Oaxaca and Vera Cruz. These faunas, he considered as Upper 

 Miocene and Pliocene. 



The most interesting of these localities, in the present con- 

 nection, are those at Tuxtepec in the State of Oaxaca, and 

 Santa Rosa and the Barranca de Santa Maria Tatetla in the State 

 of Vera Cruz. From these localities, we may note together 

 with their Costa Rican and other affinities, the following 

 species: 



Peden levicostatus Toula Gatun 

 AmtLsium luna Brown and Pilsbry 



Gatun Chesapeake Miocene 

 Gatun-Chesapeake to recent 

 Chione ulocyma Dall Upper Chesapeake 

 Architedonica granulata Lamarck 



Lower Miocene or recent 

 Serpulorbis sculpturatus H. C. Lea 

 Gatun and Upper Chesapeake Miocene 

 Strombus pugiloidis Guppy Gatun 

 Bowden 



Gatun of Water Cay 

 Solenosteira Vaugha^ii Dall variety 

 medioamericana Olsson, Gatun of 

 Water Cay 



Peden santarosanus Bose 

 Aniusium Blortoni Ravenel 

 Lcsvicardinm sublineatum Conrad 

 Anomia simplex d'Orb 

 Venus Ebergenvii Bose 

 Solarium Villarelloi Bose 



Verjnetus pidcher Bose 



Strombus pugilis Linne 

 Sconsia sublcsvigata Guppy 

 Phos mexicanus Bose 

 Melongena Mengeana Dall 



Recent. 



t Boletin del Instituto Geologico de Mexico, No. 22, 1919, pp. 11-88 



