GEOLOGY AND PALEONTOLOGY OF THE CANAL ZONE. 



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*Bullina chipolana Dall. 

 Volvulella micratracta Brown and Pilsbry. 

 Rigicula hypograpta Brown and Pilsbry. 

 Terebra subsulcifera Brown and Pilsbry. 

 gatunensis Toula. 

 wolfgangi Toula. 

 gausapata Brown and Pilsbry. 

 Conus concavitectum Brown and Pilsbry. 

 haytensis Sowerby. 

 domingensis Sowerby (?). 

 consobrinus Sowerby. 

 granozonatus Guppy. 

 aemulator Brown and Pilsbry. 

 imitator Brown and Pilsbry. 

 gaza Johnson and Pilsbry. 

 molis Brown and Pilsbry. 

 Pleurotoma albida Perry. 

 *Pleurotoma gcrtrudis Toula. 



vaningeni Brown and Pilsbry 

 Drillia gatunensis Toula. 



isthmica Brown and Pilsbry. 

 fusinus Brown and Pilsbry. 

 zooki Brown and Pilsbry. 

 consors (Sowerby). 

 enneacyma Brown and Pilsbry. 

 Cythara heptagona (Gabb). 

 Cancellaria dariena Toula. 



decaptyx Brown and Pilsbry. 

 Mitra longa Gabb. 



dariensis Brown and Pilsbry 

 sp. undet. 

 Marginella gatunensis Brown and Pilsbry. 

 leander Brown and Pilsbry. 

 coniformis Sowerby. 

 Oliva reticulata gatunensis Toula. 

 Fasciolaria gorgasiana Brown and Pilsbry. 



sp. undet. 

 *Glyptostyla panamensis Dall (not at Ga- 



tun). 

 Solenosteira dalli Brown and Pilsbry. 

 Phos gatunensis Toula. 



subsemicostatus Brown and Pilsbry. 

 metuloides Dall. 

 Metula gabbi Brown and Pilsbry. 

 Nassa (Hima) praeambigua Brown and 



Pilsbry (not at Gatun). 

 Anachisfugax Brown and Pilsbry. 

 *Strombina irira Dall. 



lessepsiana Brown and Pilsbry. 

 Murex messorius Sowerby. 



polynematicus Brown and Pilsbry. 

 (Phyllonottis) gatunensis Brown 

 and Pilsbry. 



Typhis alatus Sowerby. 



gabbi Brown and Pilsbry. 

 Strombus gatunensis Toula. 



(?) sp. undet. 

 Distorsio gatunensis Toula. 

 Malea r.amura Guppy. 

 Sconsia laevigata (Sowerby). 

 Pyrula micronematica Brown and Pilsbry 

 (not at Gatun). 

 near papyratia Say. 

 Cypraea henekeni Sowerby var. 

 Bittium nugatorium Brown and Pilsbry. 

 scoiti Brown and Pilsbry (not at 

 Gatun). 

 Turbonilla bartschiana Brown and Pilsbry . 

 Turritella mimeies Brown and Pilsbry. 

 gatunensis Conrad. 

 altilira Conrad. 

 Pttaloconchus domingensis Sowerby. 

 Solariun granulatum gatunensis Toula. 

 Natica guppyana Toula. 



bolus Brown and Pilsbry. 

 canrena (Linnaeus). 

 canalizonalis Brown and Pilsbry. 

 (?) sp. undet. 

 Polinices subclausa (Sowerby). 

 *Lupia perovata Conrad (not at Gatun). 

 Sigarcius gatunensis Toula. 



(Eunaticina) gabbi Brown and 

 Pilsbry. 

 *Capulus (?) gatunensis Toula. 

 Crepidula plana Say. 

 Cheilea princetonia Brown and Pilsbry. 

 Nucula (Acila) isthmica Brown and Pilsbry 

 Leda balboae Brown and Pilsbry. 

 Area dariensis Brown and Pilsbry. 



dalli Brown and Pilsbry (not at 

 Gatun). 

 Glycymeris carbasina Brown and Pilsbry. 

 canalis Brown and Pilsbry. 

 acuticostata Sowerby. 

 Pecten (Mquipectcn) effosus Brown and 

 Pilsbry. 

 gatunensis Toula. 



(Plagiocteniwn) opercularifo rmis 

 Toula. 

 *Pecten levicostatus Toula. 



(Euvola) reliquus Brown and 



Pilsbry. 

 oxygonum canalis Brown and Pils- 

 bry (not at Gatun). 

 oxygonum optimum Brown and 

 Pilsbry (occurrence at Gatun 

 doubtful). 



