﻿562 



BTJLLETIISr 103, UNITED STATES NATIONAL MUSEUM. 



Pecten ( Cyclopecten) oligolepis Brown and 

 Pilsbry. 

 *{Amusium) lyonii Gabb. 



toulae Brown and 



Pilsbry. 

 sol Brown and Pils- 

 bry (not at Gatun). 

 luna Brown and 

 Pilsbry. 

 Spondylus scotti Brown and Pilsbry (not 



at Gatun) . 

 Ostrea gatunensts Bro\vn and Pilsbry. 

 Crassatellites reevei (Gabb) (occmTence at 

 Gatun doubtful). 

 mediaamericanus Brown and 

 Pilsbry (not at Gatun). 

 Cardium ( Trachycardium) stiriatum Brown 

 and Pilsbry. 

 *dominicanuin 



Dall. 

 dominicense ! 



Gabb. 

 durum Brown 

 and Pilsbry. 

 Cardium (Laevicardium) serratum Lin- 

 naeus. 

 *dalli Toula. 

 *{Fragum) gatunense Dall. 

 (?) newberryanuvi Gabb. 

 *Tellina dariena Gabb. 



*gatunensis Bagg. 

 *rowlandl Toula. 

 Hepidota Dall. 



aequiterminata Brown and Pils- 

 bry, 



(Eurytellina) vetula Brown and Pilsbry 

 (not at Gatun). 

 sp. undet. 

 sp. undet. 

 *Semele sayi Toula. 



chipolana Dall (not at Gatun). 

 Chione tegulum Brown and Pilsbry. 

 sp. undet. 

 {Lirophora) ulocyma Dall. 



ulocyma holocyma 

 Brown and Pilsbry. 

 *mactropsis (Conrad). 

 Pilar centangulata Brown and Pilsbry. 

 cora Brown and Pilsbry. 

 *hilli Dall. 

 *circinata (Brown). 

 * Macrocnllista maculata (Linnaeus) f?). 

 Dosinia delicatissima Brown and Pilsbry. 

 *Callocardia (Agriopovia) gatunensis Dall. 

 *gaiuneyms multijilosa Dall. 

 Petric.ola millestriata Brown and Pilsbry. 

 dementia dariena (Conrad). 

 Cyclinella gatunensis Dall. 

 *Mactra dariensis Dall (not at Gatun). 

 Thracia {Cyathodonta) gatunensis Toula. 

 Corbula gatunensis Toula. 

 sphenia Dall. 

 sericea Dall. 

 {Cuneo corbula) hexacyma Brown 



and Pilsbry. 

 *alabamiensis Lea. 

 *gregorioi Cossmann. 

 heterogenea Guppy (not at Gatun). 

 *viminea Guppy (not at Gatun). 

 Teredo dendrolestes Brown and Pilsbry. 

 *Solecurtxis gatunensis Toula. 



strigillatus (Linnaeus). 



Sixteen species included in the foregoing list have not been found 

 at Gatun, and the occurrence there of two other species is doubtful. 

 The number of identified species of mollusca from the formation, 

 including two doubtfully determined, is 125. 



Subsequent to the publication of the papers by Brown and Pilsbry, 

 Cossmann^ has described four additional species from Mindi out of 

 materal belonging to the Gatun formation. The species are as follows: 

 Euchilodon moierei Cossmann; Conus lavillei Cossmann; Uxia mio- 

 caenica Cossmann; MargineUa mindiensis Cossmann. 



Pliocene. 

 TORO LIMESTONE. 



At Toro Point, the type locality of this formation, station No. 6037, 

 Doctor MacDonald and I collected the types of Epitonium {Sthe- 



1 Cossmann, M., Etude comparative de fossiles mioc&niques reciieillis &, la Martinique et h. I'lsthme de 

 Panama, Joum. Conchyl., vol. 61, pp. 1-64, pis. 1-5, 1913. 



