412 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [May 24, 



Carcharodon angustidens, Ag. C. Toli- 

 apicus 8f C. heferodon, Ag. 



subserratus, Jff. 



Coelocephalus salmoneus, Ag. 

 Coeloperca latifrons, Ag. 

 Coelopoma Colei, Ag. 



Iseve, Ag. 



CcElorhynchus rectus, Ag. 

 Cybium raacropomum, Ag. 

 Elasmodus Hunteri, Eger. 

 Eurygnatbus cavifrons, Ag. 

 Glyphis hastalis, Ag. 

 Goniognathus corypbsenoides, Ag. 



maxillaris, Ag. 



Gyrodus Isevior, Ag. 

 Halecopsis lasvis, Ag. 

 Hypsodon oblongus, Ag. 

 — — Toliapicus, Ag. 

 Labrophagus esocinus, Ag. 

 Lamua compressa, Ag. 



elegans, Ag. 



• Hopei (Odontaspis), Ag. 



verticalis {Odontaspis), Ag. 



Laparus alticeps, Ag. 

 Loxostomus mancus, Ag. 

 Megalops priscus, Ag. 

 Merlinus cristatus, Ag. 

 Myliobatis acutus, Ag. 



canaliculatus, Ag. 



Colei, Ag. 



■ Dixoni, Ag. 



goniopleurus, Ag. 



gyratus, Ag. 



beteropleurus, Ag. 



jugalis, Ag. 



lateralis, Ag. 



nitidus, Ag. 



Myliobatis Oweni, Ag. 



■ punctatus, Ag. 



striatus, Ag. 



Toliapicus, Ag. 



Myripristis Toliapicus, Ag. 

 Notidanus serratissimus, Ag. 

 Otodus macrotus, Ag. 



obliquus, Ag. 



Pacbycephalus cristatus, Ag. 

 Percostoma angustum, Ag. 

 Periodus Koenigii, Ag. 

 Phalacrus cybioides, Ag. 

 Phasganus declivis, Ag. 

 PbyUodus irregularis, Ag. 



marginalis, Ag. 



medius, Ag. 



planus, Ag. 



polyodus, Ag. 



Toliapicus, Ag. 



Pisodus politus, Owen. P. Owenii, Ag. 

 Podoceplialus nitidus, Ag. 

 Pomopbractus Egertoni, Ag. 

 Pristis bisuicatus, Ag. (?) 

 Psabodus compressus, Eger. 

 Ptycbocephalus radiatus, Ag. 

 Pycnodus ToUapicus, Ag. 

 Rbinocephalus planiceps, Ag. 

 Rhipidolepis elegans, Ag. 

 Rhoncus carangoides, Ag. 

 Rbynchorhinus brancbialis, Ag. 

 Sciaenurus Bowerbanki, Ag. 



crassior, Ag. 



Scombrinus nuchalis, Ag. 

 Spbyraenodus crassidens, Ag. 



priscus, Ag. Dictyodus, Owen. 



Teraticbtbys antiquitatis. Km. 

 Tetrapterus priscus, Ag. 



MOLLUSCA. 



Cephalopoda. 

 Belosepia sepioidea, Blainv. 

 ^Nautilus centrabs, Sovk 



* imperialis. Sow. 



regalis. Sow. 



urbanus, Sow. 



* (Aturia) zic-zac, Sow. 



Gasteropoda. 

 Acteon simulatus, Sow. 

 Ancillaria. 

 Aporrbais Sowerbii, Mant. Rostel- 



laria, Sow. 

 Buccinum junceum, Sow. ? 

 *Bulla attenuata. Sow. 

 Cancellaria quadrata, Sotv. 

 Cassidaria nodosa, Brand. 



Buccinum,V>xQ.x\i. ; C. carinata,T)e%\i. 

 striata, Soiu. 



*Ceritbium Charleswortbii, n.s.li 



Corbula. 

 *Conus concinnus, Sow. 



Cyprsea oviformis. Sow. 



DentaUum nitens. Sow. 

 *Fusus bifasciatus. Sow. 



coniferus, Soiu. 



Murex cristatus, Soiv. 



spinulosus, Desk. 



*Natica labeUata, Lam. 



*Pleurotoma prisca, Soiv. Murex, Br. 



rostrata. Sow. Murex, Brand. 



*Phorus extensus, Soiv. 



Pj'rula tricostata, Desk. ? 



angulata, Edw. 



*Rostellai-ia lucida, Sow. 



Scalaria reticulata. Sow., non Brand. 

 *Solarium patulum, Sow. 



il I give tbis name to a beautifully sculptured Cerithium, figured, but not de- 

 scribed, by Mr. Cbarleswortb in 1849, amongst some illustrated Barton specimens 

 (cai"d fig.y). At Barton it is an extremely rare species, but it is very common and 

 characteristic at Sheppey and Southend. 



