562 



BULLETIN" 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 gatunensis Brown and Pilsbry. 

 Crassatellites reevei (Gabb) (occurrence at 

 Gatun doubtful). 

 mediaamericanus Brown and 

 Pilsbry (not at Gatun). 

 Cardium ( Trachycardium) stiriatum Brown 

 and Pilsbry. 

 *dominicanum 



Dall. 

 dominicense 



Gabb. 

 durum Brown 

 and Pilsbry. 

 Cardium (Laevicardium) serratum Lin- 

 naeus. 

 *dalli Toula. 

 *(Fragum) gatunense Dall. 

 (?) newberryanum Gabb. 

 *Tellina dariena Gabb. 



*gatunensis Bagg. 

 *rowlandi Toula. 

 *lepidota Dall. 



aequiterminata Brown and Pils- 

 bry. 



(Eurytellina) vetula Brown and Pilsbry 

 (not at Gatun). 

 ep. 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. 

 *Hlli Dall. 

 *circinata (Brown). 

 * Macrocallista maculala (Linnaeus) (?). 

 Dosinia delicatissima Brown and Pilsbry. 

 *Callocardia (Agriopoma) gatunensis Dall, 

 ^gatunensis multifdosa Dall. 

 Petricola 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. 

 het erogenea Guppy (not at Gatun). 

 *viminea Guppy (not at Gatun). 

 Teredo dendrolestes Brown and Pilsbry. 

 *Solecurtus gatunensis Toula. 



strigillatus (LinnaeuB). 



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 1 has described four additional species from Mindi out of 

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

 Euchilodon moierei Cossmann; Conus laviUei Cossmann; TJxia mio- 

 caenica Cossmann; Marginella 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- 



J Cossmann, M., Etude comparative de fossiles mioceniques recueillis h la Martinique et k l'Istnme de 

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



