SIR C. ELIOT—REPORT ON THE NUDIBRANCHS. 89 
on the reef from which I took many specimens of a small Tritonid. They 
are elongated with a tapering tail, the body being almost vermitorm and does 
not contract on killing. The cerata are remarkably small. The colour black 
with specks of white which are especially aggregated in two bands along the 
sides of the back. Cerata translucent with white tips.” 
Forty-five specimens are preserved. The iargest are 8-10 mm. long, with 
a maximum breadth of 15mm. The colour remains much as described. 
The cerata are 20 or more on either side, not foliaceous but concave spoon- 
shaped laminze. The oral veil bears two longish processes, and the rhinophore 
sheaths from two to four. The rhinophores are brown or spotted with brown ; 
they appear to bear a few very inconspicuous perforations below the club. 
The anterior margin of the foot presents various shapes and is probably 
alterable in life, but is not produced in conspicuous prolongations in any 
specimen. 
The jaws are as in L. genet, with many rows of denticles or projections 
which have the appearance of a mosaic near the edges. The radula is in the 
confused state common in the genus. There are about 17 rows, and where 
the rows can be clearly counted the formula is 9.0.9. The teeth are irre- 
eularly denticulate on both sides, much as in L. marmoratus. 
The liver appears to consist of three divisions and to enter the stomach by 
three ducts, one posterior and one on either side. The posterior liver is the 
largest ; it encloses the hinder part of the stomach and extends some way 
backwards. The anterior livers run forward as far as the sides of the buccal 
mass. Though branches of the livers extend to the bases of the cerata, they 
do not send prolongations into them, or into the rhinophore sheaths. Both 
the cerata and sheaths contain blood-spaces but not hepatic diverticula. The 
genitalia appear to be mature. The verge is white, large and without any 
armature. The hermaphrodite gland is large and appears to contain ripe 
ova; it lies mainly under the posterior liver, but rises towards the dorsal 
surface at its sides. The mucus-gland is very large. 
This species comes very near to L. marmoratus in size, colour, and anatomy, 
but differs in the following points :—(1) The shape is much more elongated 
and vermiform ; (2) the cerata do not form a wavy curtain but a series of 
separate and equal projections, all on the same level, and though all are set 
on the prominent dorsal margin they are not connected by a membrane * ; 
(3) the corners of the foot are not developed into distinct prolongations. If 
these features were found in only one specimen their specific value would be 
doubtful, but as they occur uniformly in a large number they have some 
weight, particularly as it is a considerable assumption to suppose that 
LL. marmoratus is found in the Red Sea. 
* It is of course difficult to be sure of this point in such small animals, for the membrane 
would be likely to shrivel up when preserved, 
