238 PROCEEDINGS OF THE MALACOLOGICAL SOCIETV. 



black, are very small. The ganglia are injured, but appear to be as 

 in Archidoris. 



Tbere is a very strong labial cuticle covering a bard muscular ring, 

 but not containing any trace of a labial armature. The hinder part 

 of the radula has been injured. The portion remaining is 14-5 mm. 

 long and 15 5 broad. It consists of 44 rows, containing about 

 75 teeth on either side of the bare rhachis. The front rows are of 

 a dark mahogany colour, those behind somewhat lighter. As in the 

 type-specimen, the rhachis has two or three longitudinal folds, but 

 is proportionall)^ not so wide. The inner and outer teeth of each row 

 are smaller than those in the middle. The innermost tooth of each 

 row projects almost at right angles into the rhachis ; it is low, often 

 irregularly shaped, but not denticulate. The teeth are simply hamate ; 

 the outermost smaller, but not degraded. 



The salivary glands are large, 40 mna. long when stretched out, 

 and 5 mm. wide at the thickest part. They are tapering, simple, and 

 not at all ramified. The liver has a deep cleft in front, in which lies 

 the stomach. It is laminated internally, and full of what appear to 

 be fragments of a grass-like seaweed. 



The reproductive organs are very much injured. The verge and 

 vagina appear to be as va. Archidoris, and not armed. The vas deferens 

 is much convoluted. Lying with the other organs, but detached from 

 them, is a long greyish gland, which may be a prostate. If so, the 

 animal is referable to Bergh's genus Anisodoris. I am not, however, 

 myself of opinion that the mere presence or absence of a prostate is 

 sufficient to divide otherwise similar forms into separate genera. 



