BY WILLIAM A. IIASWELL, M.A., E.Sc. 271 



This species is, as remarked by Dr. Baird, tlie representative in 

 Australian seas of the European Sea-Mouse fAj^hrodila aculeataj, 

 I have only had the opportunity of dissecting* one specimen of 

 this species, and that a very old spirit-specimen ; but there seems 

 to be little, if any, material difference in the internal structure. 

 The form and arrangement of the intestinal ca)ca, the enclosure 

 of the dorsal portions in the transparent dorsal tubercles, form- 

 ing the so-called '' branchiso," and the structure of the nerve cord 

 are precisely similar. 



The xlustralian Sea-Mouso does not seem to be by any means 

 so common as its European congener ; but this may be due to 

 the operation of trawling not being carried on by Australian 

 Fishermen, as the majority of the specimens obtained on the 

 English coast are got by tliis means, or from the stomachs of 

 hshes obtained by deep sea-lines. 



Aphrodita Terra}-Keginpe, sj). n. 



The body of this species presents 38 segments, elytra being 

 present on the first, third and every alternate segment. The 

 head is small and covered by the front pair of scales. The 

 tentacles are about \ of an inch in length, smooth, tapering. The 

 scales are delicate, semitransparent and covered by a thick matting 

 of felted hairs. The dorsal cirri are very long and slender ; the 

 ventral ^^yy short, tapering, not reaching to near the extremity 

 of the ventral setpc. The ventral surface is minutely tuberculated. 

 The ventral seta) are about half a dozen in number in each 

 parapodium, brown, short, rather stout, slightly curved at the 

 tip without serrations or teeth. The dorsal setae are very yellow; 

 stout, rather flexible, about \ of an inch in length, straight and 

 unarmed. 



Dredged near Cape Flinders, Northern Queensland, at a depth 

 of a few fathoms. 



