NOTES ON NTJDIBRANCHS. 
85 
are set a circle (or two half circles divided by an interval) of small 
glands, each consisting of a roundish mass bearing small tuberculate 
processes. They appear to be ptyaline glands, and are additional to 
the ordinary band-like salivary glands, which also are present in the 
usual place behind the buccal bulb. 
The buccal mass is small. The radula does not exceed 30 rows, 
even in large specimens, and the number of teeth in each half row is 
only 40-45. They are hamate and rather slender. The inner and 
outer teeth are smaller than the rest, but not denticulate or materially 
different in shape. There is no trace of buccal armature. The 
oesophagus is broad and dilates into a sort of bag. The stomach is 
not very large, and has thin walls. 
The liver is of a deep brown. It is covered with a thick layer of 
the whitish hermaphrodite gland which sends branches into its 
substance, some of which are 5 mm. long. The branches of the 
gland, though thick, allow the dark mass of the liver to be seen 
between them. The liver is deeply cleft in front to receive the 
stomach, and pointed at the posterior end. 
In the central nervous system the cerebro-pleural ganglia are 
fused into an egg-shaped mass, a little broader in front than behind. 
The pedal ganglia are round. The eyes large, with red lenses. 
The blood gland is brown, rather large and thick, and appears to 
consist of several lobes compressed together. 
The outer of the two large genital glands (the mucus gland) is 
bright brown, and still soft and sticky. The inner portion (the 
albumen gland) is hard, and yellowish white. The vas deferens 
is long and much coiled. There is no prostate gland, but the 
upper portion of the vas deferens is thicker and softer than the 
lower. The two receptacula seminis are close together, both 
spherical, and both of much the same size. One is pink, the 
other yellow. 
I have compared these specimens with the type specimen of 
Trippa ornata in the Copenhagen Museum, and consider that 
they belong to the same species, although the type specimen 
is much lighter, being brownish green. It may represent a 
light variety, but has also lost its original colour in all 
probability. 
It is also I think certain that these specimens are the Doris intecta 
of Kelaart, as was suspected by Bergh himself (1. c. Heft XVII.). 
As pointed out in a previous paper (Eliot, 1. c.), the objection to 
identifying this form with T. ornata was Kelaart’s statement that it 
had long oral tentacles, but the present series of specimens shows 
that though the tentacles often contract under the influence of 
alcohol, they are sometimes elongate as preserved, and probably 
are always elongate in life. I doubt if Bergh’s Trippa afjfinis is 
more than a variety of this species. The white band and the dorsal 
keel are not constant features. 
