By W. L. MAY. 



313 



Trigonia margaretacea, Lamk.; Var. acuticostata, 

 McCoy. Some perfect specimens and numerous valves 

 were taken in 40 fathoms of¥ Schouten Island. The ribs 

 in this variety are closely set with short spines, giving it 

 a very distinct appearance. 



Modiola linea, Hedley; Rec. Aus. Mus., VI. Several 

 living and valves from 40 fathoms off Schouten Island. 

 The species is very small, and very distinct from our other 

 forms, but most nearly approaching M. arborescens. 



Philobrya tatei, Hedley; Rec. Aus. Mus., 1901. A 

 number of single valves occurred in 80 fathoms off 

 Schouten Island. Identified by the author. 



Philobrya pectinata, Hedley; Mem. Aus. Mus., IV. 

 Also numerous as single valves in 40 fathoms off 

 Schouten Island. 



Cyclopecten favus, Hedley; op. cit. Several valves 

 were taken in 40 fathoms ofif Schouten Island. 



