110 TETHYS-INDIAN OCEAN. 



mented with brown spots, the edge surrounded with a series of white 

 spots. (A. & .#.). 



Mauritius. 



Aplysia nodifera A. & K., Zool. Voy. Samarang, p. 64, pi. 18, f. 

 7 (1848). 



" The row of white spots round the margin and numerous pale 

 violet spots on the sides are striking characters of this species." In 

 this form, as in the other forms described by Adams, structural 

 characters are ignored, although Rang in 1828 had indicated the 

 more important features of the external anatomy of Aplysia. 



T. LINEOLATA Adams & Reeve. PL 16, fig. 2. 



Back convex, posteriorly acuminate ; pale green, ornamented 

 with blackish anastomosing lines and numerous eye-spots, with the 

 pupil black, the iris vivid violaceous. This elegant species is re- 

 markable for the acuminated form of its caudal extremity, and for 

 the slenderness of the posterior tentacles. (A. & R.}. 



Mauritius. 



Aplysia lineolata A. & R., Zool. Voy. H. M. S. Samarang, Moll., 

 p. 63, pi. 17, f. 1 (1848). 



No structural details have been published. 

 T. OCULIFERA Adams & Reeve. PL 16, fig. 8. 



Dull green, ornamented with ocelli or eye-spots having the pupil 

 buff, iris brown, and with buff and white dots arranged in groups. 

 The beautiful eye-like spots render the appearance of this species 

 very elegant. The posterior tentacles are subulate and acutely 

 pointed. (A. & R.). 



Mauritius. 



Aplysia oculifera A. & R., Zool. Voy. Samarang, p. 64, pi. 17, f. 

 3 (1848). 



" The Aplysia punctata of Philippi is marked with congregated 

 dots in the same manner, but it wants the ocelli ; the Aplysia argus 

 of Riippell has the body covered with numerous ocelli, without the 

 clusters of dots." 



T. ARGUS Riippell & Leuckart. PL 60, fig. 53. 



Length of living individuals 1 foot ; an alcoholic specimen meas- 

 ures 5 inches. General form as in A. depilans. The forward ten- 

 tacles are very broad and trumpet-shaped ; the swimming lobes are 



