568 I'ROK. c. II. o'donoghue : report on 
The hermajilirodite gland is connate with the liver ; no discrete prostate is 
present ; the glans penis is armed. 
There is a possiblity that the generic name Nembrotha Bergh, 1877, will 
have to be replaced by Angasiella Angas & Cross, 1864 : the form 
described by the latter being very much like those in Bergh's genus — 
indeed, Bergh himself includes it as a doubtful member o£ the genus. The 
matter can hardly be definitely settled unless the collection of further 
specimens renders it possible to examine it more closely. 
Species Nembrotha puepukbolineata^ sp. nov. (PI. 28. figs. 16, 17 ; 
PI. 30. figs. 60, 61.) 
Body. The body is limaciform, rising from the front end to the middle, 
where it bears the branchise, thence it gets lower again and terminates in a 
short tail. The smooth dorsum passes over into the side of the body without 
line of demarcation or pallial edge. The anterior end bears a narrow 
veil-like expansion. 
Colour. The general body-colour of the preserved animal is a dirty 
yellowish grey marked with pale brown lines. A broad dark band com- 
mences just behind the rhinophores and passes back in the mid-dorsal line to 
the branchise. A thinner dark line passes round the front, anterior to the 
rhinophores, and back on each side of the dorsum. Behind the branchiae 
these two lines converge and meet, about halfway between the gills and the 
posterior end, to form one line in the middle which runs back to the end of 
the tail. Another line starts at the front end about halfway up the body on 
each side. It runs back roughly parallel with the edge of the foot to join 
the dorsal line near the tail. Professor Dakin informs me that in life the 
body-colour of the animal was a translucent slate-grey and the dark bands 
were purple-brown. 
Dimensions. The form of the specimen was not well preserved, but it 
measured 35 mm. long by 10 mm. wide and 11 mm. high. 
Head. The head is small and not conspicuous. At each side it bears a 
tiny tentacle, somewhat knob-shaped in the retracted condition, and between 
them is the circular mouth. 
Foot. The foot is linear and not strongly developed. The hinder end 
passes off into the pointed tail, and the anterior end is cleft and has rounded 
corners. 
Rhinophores. The rhinophores are small, have a perfoliate clavus, and are 
completely retractile within cavities with smooth round apertures. 
Branchice. The non-retractile branchise consist of five bipinnate plumes, 
joined at their bases. The anterior one is in the middle line and larger than 
the others. 
Radula. The radula is relatively small and when flattened measured 4 mm. 
bv 2 mm. It bears 82 rows of teeth and the number in the oldest row is 
