132 



GEOLOGICAL REPORT. 



L1206 



. The following is a list, prepared by Prof. W. J'. I th 



found in strata Nos. i and 5 at Moody's Branch and Dry Creek. V\'ith a few 

 differences in the relative prevalence of species, the character of the fauna at both 

 iitiallv the same. Four species not found on Dry Cieek arc 

 represented at Moody's Branch, while 15 species not occurring at the latter place 

 were found on Dry Creek. It will he perceived that 8 of the species mentioned 

 below (marked with an asterisk*), are also found at Vicksburg, thus rendering 

 the gap between the two faunas less wide and abrupt, than the lists herei 

 -hod wouli t appear. 



!■•(>, )WER SHELL-BED, AT JACKSON. 



v i ; — ' ' ; I with 



... 



i i 



FISH. 



The of shark.- occur in the strata of the Jackson 



p; all those mentioned in the catalogue of the Vicksburg fossils (if 220) 



seem to be represented. Prominent among them, both for frequency and oizc>, 



are teeth oi ; ofwhich specimens 4 in's in length haVi een 



found aear Jackson. 



BIVALVES. 



/ • ina ' 



. a 



■ icardia rotunda, Lea. 

 *Cythi rea sobrina 



bills. 

 *Mactra funerata. 

 i ktrdium Nicolli U. 

 Astarte parilis. 

 Crassatellaflexura, 

 Gorbula den 

 Gorbula bicarinata. 

 Gorbula, 2 n. sp. 

 Egeria, 3 n. sp. 

 Tellina, sp. 

 *Psammobia lint/, a. 

 Psammobia, sp. 

 ina, '-' sp. 



* BenUd'c u in. Mi>-*i.ssippien ..-. 

 Gapulus Americana*. 

 Trochita trocYiformis 

 Trochita, n. sp. 

 Umbrella planulata. 

 *Natica Vicksburgen ■ 

 Natica permunda. 

 Natica, n. sp. 

 Pyrula sp., (fenestrated). 

 Strepsidura dumosa. 

 Clavelithes humerosus. 

 Clavelithes varicosus. 

 Clavelithes Mississippiensis. 

 Fastis sp. 



* Turbinella Wilsoni. 

 Garieella jpolita. 

 Mitra dumosa. 

 Mitra Millingtoni. 



bis, n. sp. 

 Stolen. 



Partppaea n. sp. ill i '. ohlo 

 Nucula, 3 a. sp. 

 Leda nultili ■• 



/.nil/, Q. Sp. 



*Navu ■'In lima. 



Nawicula aspera. 



Glossu. ■ ■' 



Avicula. n. sp. 



Pinna. 



Pecten nuperum. 



Pecten, 2 sp. 



Teredo Mis ri nppien ri$. 



UNIVALVES. 



Vol a la dumosa. 

 Voluta symmetrica. 

 Bostellaria velata. 

 Bostellaria extentu. 

 Morio P&tersoni. 

 Conus tortilis. 

 Marginella 2 a. sp. 

 Gypraea fenesti a 

 Cypraea pinguis. 

 *Cypraea lintea. 

 * Gypraea spha< 

 Andlloria. 

 Oastridium vet ustu »» ■ 

 Turritella alveata. 

 Turbo sp. 

 Architectonic! a 

 Arch iteeton ica bella it Hata. 

 Phorus rech 



