1022 ON THE PYCSTOGONIDA OF THE AUSTRALIAN COAST, 



Ascorhynchus minutus, Hoeck. Off Port Phillip. 

 Colossendeis gigas-leptorhynchus, Hoeck. South of Australia. 

 Colossendeis tenuissinia, n. sp. Port Denison. 

 Achelia kevis, var. austral iensis, Miers. Port Jackson. 



Fam. Pallenid.e. 

 Pallene lsevis, Hoeck. South Coast. 

 Pallene chiragra, Milne-Edwards. Jervis Bay. 

 Pallene pachycheira, n. sp. 



Pallene austi-aliensis, Hoeck. South-East Coast. 

 Pallene languida, Hoeck. Melbourne. 

 Phoxichilidium tubiferum, n. sp. Port Jackson. 

 Phoxichilidium Hoeckii, Miers. Torres Straits. 



Fam. PhoxichilidjE. 

 Phoxichilus charybdaeus (j), Dohrn. Port Molle. 

 Pycnogonum australe, Grube. 

 The momenclature of the appendages and the definitions of the 

 genei-a followed in drawing up the following descriptions have been 

 mainly those of Dohrn (1). 



Genus. NYMPHON. Fabr. 



Nymphon jEQUIDIGITatum, n. sp. [PI. LIV., figs., 1 — 5.] 



The length of the body is about four and a-half times its greatest 



breadth; the lateral processes are separated from one another by 



distinct intervals, and are about as long as the body is broad ; the 



"neck" is half the length of the rest of the body and much 



narrower. The divisions between the segments are well-marked. 



The proboscis is rather longer than the neck, and is dilated at the 



base where it is considerably broader than the body ; distal ly it 



narrows slightly and ends in a rounded extremity. The abdomen 



is about a fifth of the length of the body, deeply notched behind. 



The first pair of appendages are very large, their basal joint is as 



long as the proboscis, stout, rather thicker distally than proximally. 



(1.) Fauna and Flora des Golfes von Neapel, III. Monographic: Pant 

 opoda, von Dr. Anton Dohrn, Leipzig, 1881. 



