PROF. W. A. HASWELL OX AUSTEALASIAX POLTCLADS. 



481 



The tentacles are comparatively large, subtriangular, and to judge from Mr. Mc- 

 Culloch's sketc'li, must, in the living animal, have extended well beyond the notch in 

 which they are situated. There are about 30-40 eyes in each tentacle and about 40 

 on each side above. The cerebral eyes are concentrated into a single dense clump. 

 The mouth is situated just behind the brain. Both of the reproductive apertures are 

 situated well in advance of the middle of the body, the male at about the junction of 

 the second and third sevenths, the female close behind it. 



The sucker is somewhat in front of the middle. It is not an elevated disk as in 

 Fseudoce7'os carclinalis, but a shallow circular pit with a radial arrangement of its 

 muscular fibres. The pharynx is small and situated anteriorly, but is strongly plicated. 



The penis, which is directed backwards, has a tubular chitinous stylet. There is a 

 small, oval, prostate reservoir and a large prostate. The male apparatus is situated 

 partly below, but mainly behind the pharynx. The female apparatus appears to be 

 quite simple. 



Eut for the character of the pharynx, this form might perhaps be included in the 

 genus Fi-osthecerceiis ; but a plicated pharynx dots not appear to occur in any of 

 the EiirxjlexdidcB, and, in spite of certain points of divergence from the other species, 

 1 think it best to refer it, for the present, to the genus Fseudoceros. 



The only specimen was obtained by Mr. Chas. Hedley, P.L.S., on a reef at Masthead 

 Island, Capricorn Group, Queensland. 



Prosthecerjeus anomalls, n. sp. 



The tentacles are of moderate size in the preserved specimen and in the form of 

 flattened cones. The cerebral eyes are arranged in two closely approximated groups 

 over the brain — about 30 in each group. There are about 100 tentacular eyes. The 



mouth, which is very small, is situated immediately behind the brain. The male 

 aperture is just behind the pharynx; the female aperture is a little distance behind 

 the male. The sucker is situated at about the middle of the length. 



SECOXU SERIES.— ZOOLOGY, VOL IX. 09 



