OF CONCHOLOGY. 259 



The paper appears to us to be ultra-progressive in regard to 

 genera, and singularly conservative regarding species. 



Descriptions of six new species of Helicidce from the Solomon 

 Islands, Western Pacific. By George French Angas. 



(xeotrbckus gamelia, Gfeotrochus Coxianus, 



" eros, " mendana, 



" ambrosia, Trochomorpha partunga. 



Description of a new species of Land Shell belonging to the 

 genus Coeliaxis, Ad. and Ang. By H. Adams and G. 

 F. Angas. 



Gen. Coeliaxis (char, emend.) 

 0. exigua, Solomon Archipelago. 



On a new genus and some new species of Marine Mollusca 

 from Port Jackson, New South Wales. By Geo. French 



Angas. 



Alicia, n. gen. (allied to Periploma and Lyonsia). 



Alicia angustata, Loripes assimilis, 



" elegantula, Mysia Adamsi, 



Thracia modesta, Mysia Jacksoniensis, 



Dosinia puella, Lepton Adamsi, 



Sunetta Adelinw, Modiolaria barbata, 



Spisula cretacea, Ostrea virescens, 



" producta, Crossea concinna. 



A List of Species of Marine Mollusca found at Port Jack- 

 son- Harbor, New South Wales, and on the adjacent 

 Coasts. By George French Angas. Part 2. 



The second part of this very valuable paper gives the cata- 

 logue of the Conchifera and Brachiopoda, with references, syno- 

 nymy and remarks. 



Notes on Catillus, Humphrey, or Navicella, Lamarck, with 

 descriptions of two new G-enera. By Dr. J. E. Gray. 



C. affinis, Reeve, is a synonym of G. clypeolum, Rve. 



C. ornatus, Ad. and Ang., is a synonym of C. Bougainvillii, 

 Rec. 



C. capuloides ? and C. scarabaeus, Rve.; are synonyms of C. 

 magnificus, Reeve. 



C. bimaculatus, Rve., is a synonym of C. porcellanus, Linn. 



C. Luzonicus, Schlegel, is a synonym of C. Cumingianus, 

 Reel. 



Paria, n. gen. Type P. Freyceneti, Recluz. 



