ELIOT: NUDIBRANCHS AND TF.CTIBRANCHS FROM INDO-PACIFIC. 309 



The visceral mass lies horizontally and is not at all raised. It 

 adheres to the floor of the branchial chamber throughout its whole 

 length. It consists chiefly of the liver, which is composed of closely 

 packed tubes. The stomach is enclosed in the liver, which is 

 traversed by several ducts opening into it. The hermaphrodite gland 

 is spread over the surface of the liver and is whiteish, but in places 

 reddish. In the lower portion of the visceral mass lies the large 

 opaque white mucous gland. 



The central nervous system appears to be as in L. philippii^ but the 

 ganglia are distinctly granulated.^ 



The buccal mass is small, about 3 mm. long and 1.2 mm. broad, 

 and consists of a round antechamber with dilatations at the side 

 followed by a narrower portion which bears about 12 transverse 

 striations on the upper surface. The crop is enormous compared to 

 the size of the other organs. It consists of a flattish tube about 

 2 mm. wide, bent on itself four or five times and deep yellow in 

 colour. As it lies, the length is about 5 mm., but if straightened out 

 it would be 20 or 25 mm. long. It shows signs externally of being 

 divided by a whiteish furrow representing the lumen which is about 

 .5 mm. wide, and not always strictly median. The radula contains 6 

 teeth in the ascending series, of which the first is rudimentary, and 9 

 in the descending series. (Text Fig. 4). In the heap are more than 



b a T.J.E. del. 



Text Fig. 4. — a. Three teeth from the radula of Lobigtr nevilli. 

 b. A smaller tooth from the heap. 



20 teeth of various sizes piled together quite irregularly. The teeth 

 are yellowish at the base and colourless in the upper part. The shape 

 is much as in Z. philippii, but perhaps a Httle stouter and more even. 

 In the figure they are shown as seen somewhat from below, which 



I See Vaj'ssifere's figure, " Opislh. de Marseille," Suppl., pi. iii., fig. 40. 



