OF NEW SOUTH WALES. 251 



Boston Athemeum. From that time forward his tastes and 

 studies took a decided turn for Conchology, and it would be a 

 long work to attempt to give a list of the various essays, papers 

 and work put forth by him on that subject during the rest of his 

 extraordinarily active and useful life. In 1848 he was associated 

 with the elder Agassiz in preparing a work on the principles of 

 Zoology, and for many years issued certain essays of great 

 value in his particular department of science named Otia Con- 

 chologica. 



In 1846 he was employed by the American Government to 

 report upon the shells collected in the U. S. Exploring Expedi- 

 tion under Commodore Wilkes. This task was not completed 

 for some years and was continued in the Proceedings of the 

 Boston Society of Natural History through many volumes. The 

 eminent career of this zealous scientific labourer was cut short 

 in a very unexpected manner. Dr. Augustus A. Gould died of 

 cholera, in Boston, after an illness of only 15 hours, on Sep- 

 tember 15, 1866, at the age of 61. 



The following is a collection of all the descriptions of Aus- 

 tralian Shells named by him. Proc. Bost. Soc. Nat. Hist., vol II., 

 p. 142. 



Chiton quercinus. 



T. depressa, ovalis, vix carinata, quercina, maculis olivaceus 

 nebeculata, valvis subrostratis, areis lateralibus vix elevatis, 

 longitudinaliter, sulcatis, sulcis incumbentibus et sulco radiante 

 bisectis, areis centralibus ad latera lineis rugosis longitudinaliter 

 sculptis, ad dorsum punctatis ; valva anteriori sulcis concentricis et 

 sulcis radiantibus ?emotioribus decussata ; valva posteriori prope 

 marginem umbonata, margine lato, pumicoso, Jlavescente. Long. |-, 

 lat. | poll. Hab. N". S. Wales. 



Allied to G. foveolatus Sowerby. 



Chiton jugosis. 



T. ovalis, carinata, tectiformis, nitida, coloribus pallide et 

 saturate herbeis variegata, valvis planulatis, ad apices adunco 

 acuminatis, areis lateralibus prominentibus et lineolis confertis 



