42 Frederick Ghaprnan : 



Genus KRITHE, Brady, Crosskey and Robertson. 



Krithe eggkki, sp. nov. (Plate VIII., Figs. 29a, b). 



Description. — Valve, seen from the side, narrow, subreniform, 

 anterior extremity rounded, posterior bluntly pointed at the ven- 

 tral angle ; dorsal margin arched, ventral slightly sinuous. The 

 anterior margin is bordered by a flange of unusual width for this 

 genus. Surface minutely punctate. Edge view of carapace ovate, 

 compressed anteriorly, broad at hinder end. 



Dimensions. — Length, .615 mm.; height, .27 mm.; thickness of 

 carapace, .27 mm. 



Affinities. — This species is related to Krithe producta, G. S. 

 Brady,! but is much narrower, and has a conspicuous, flange-like- 

 anterior border. 



Named in honour of Dr. J. G. Egger, who has already described 

 more than one new species of this genus. 



Occurrence. — Bore 11, 260-265 feet (Kalimnan). 



Genus LOXOCONCHA, G. 0. Sars. 



Lo.\ocoNCHA AUSTRALIS, G. S. Brady. (Plate A^IIf., Fig. 30). 



Loxoconcha australis, G. S. Brady, 1880, Rep. Chall Zool., 

 vol. i., pt. iii., p. 119, pi. xxviii., figs. 5«-/. ; pi. xxix., 

 figs. ']a-d. 



Ohser rat ions. — The " Challenger " recorded this species from- 

 Port Jackson, New Soutli Wales, at 2-10 fathoms, and from Booby 

 Island, Torres Strait, 6-8 fathoms. I have lately obtained it from 

 a sounding east of Tasmania, 777 fathoms, dredged by F.I.S. 

 " Endeavour." 



Typical specimens occur in both Janjukian and Kalimnan strata 

 in the bores, showing the species to have been established in Aus- 

 tralian seas as eai-ly as the Miocene. 



Occurrence. — Bore 7, 142 feet 3 inches-155 feet (Kalimnan). 

 Bore 10, 105-225 feet ; 225-230 feet (Kalimnan). Bore 11, 444-446 

 feet (Janjukian). 



1. Kep. Chall. Zool., vol. i., pt,. iii., 1880, p. 114, pi. \xvii., fi<;-8. In.?. 



