480 PEOF. W. A. HASWELL ON AUSTRALASIAN POLYCLADS. 



the latter they do not. The specimen was immature and the reproductive system 



undeveloped. 



This somewhat aberrant Polyclad creeps, but never swims. As Lang remarks of the 

 European form, the anterior portion begins to move while the posterior is still at rest. 



Found between tide-limits in Port Jackson (Woollahra Point). 



PSETJDOCEROS (?) CAKDINALIS, n. sp. (Plate 37. fig. 6.) 



The leno-th of the preserved specimens is 1 cm., the breadth 8 mm. The colour of 

 the upper surface in the living animal was bright scarlet. 



The tentacles are very inconspicuous, being mere blunt lobes at the sides of the 

 anterior median notch. The central group of eyes numbers about 150 altogether. 

 It is obscurely divided into two behind by a very narrow space, but is undivided 

 in front. The tentacular eyes are difficult to count, owing to their being very closely 

 aiTcrrecrated anteriorly ; but there appear to be about ].00 on each tentacle, distributed 

 equally on the dorsal and ventral surfaces. The mouth is situated just below the brain. 

 The male reproductive aperture is at the beginning of the second sixth of the entire 

 leno-th, and is only a short distance behind the mouth. Tlie female aperture is about 

 one-sixth of the length behind this. Tlie sucker is situated about the middle of the 

 len^'th of the body; it has the form of a disk elevated above the general level of 

 the ventral surface. 



Tlie w^all of the bell-shaped pharynx is devoid of the foldings characteristic of other 

 species of Pseudoceros. 



The male apparatus is single. There is a conical penis, which contains a chitinous 

 stvlet ; there is a pear-shaped granule reservoir, and a large long-oval vesicula seminalis 

 thiice the length of the granule reservoir. 



Two specimens were obtained togecher on an oar-weed brought up by the trawi in 

 Iron Cove River, Port Jackson. 



Of the two specimens obtained, one was mounted entire, the other was cut into 

 sections. The latter Wcis found to contain ripe ova in the uteri, but the testes were 

 immature and contained no spermatozoa, and the vesicula seminalis contained only a 

 "■ranular mass. There were no spermatozoa in the uteri; hut in the parenchyma, near 

 the dorsal surface, directly over the ootype, was a large mass of mature spermatozoa 

 which must have been received by perioral ion of the penis of another individual, and 

 there was a similar mass somewhat further forwards *. 



The nature of the pharynx distinguishes tliis from the described species of Pseudo- 

 ceros, with which in other respects it is nearly allied. The generic position of this and 

 also of the following species cannot be looked upon as definitely settled. 



Pseudoceros (?) limbatus, n. sp. 



The len'^th of the preserved specimen is 1-5 cm., the breadth 0*5 cm. I am indebted 

 to Mr. Alan McCulloch for a coloured sketch of the living animal, in which the upper 

 surface is light red with a well-defined marginal band of purple. 



* These contained spermatozoa of two distinct kinds. 



