EXPLANATION OF PLATE LXI. 

 PencBOpsis novce-guincce (Haswell). 



Fig. 1. Thelycum of an adult female in the collection 

 of the Macleay Museum, University of Sydney, 

 from Darnley Island, Torres Strait. Carapace 

 and rostrum 29 mm. long. 



Fig. 2a-b. Stridulating organs on the posterior margins 

 of the carapaces of two small females in the 

 collection of the Australian Museum (Reg. No. 

 P.412 port). The carapace and rostrum of each 

 specimen measures IT mm. 



(NOTE. These drawings were prepared from 

 the two specimens illustrated on Plate Ixvi.) 



Peixeopsis tnogienisifs (Rathbuu). 



Fig. o. Thelycum of a young female in the collection of 

 the Macleay Museum, University of Sydney, 

 from Darnley Island, Torres Strait. Carapace 

 and rostrum 11-5 mm. long. 



Fig. 4. Thelycum of a female specimen in the collection 

 of the United States National Museum, 

 Washington (Cat. No. 492T3, U.S.N.M.). Cara- 

 pace and rostrum 28-5 mm. long. 



