128 Annual Report of the Natural lliatorri Society 



Mr. J. Desjardins has given a descriptive and historical account of llicso 

 two species, which lie has named Telfair's Scink (Scincus Telfairii), and 

 Bojer's Scink (Scincus Bojerii). A third species, smaller and more rare 

 has been described by him, and named Bouton's Scink (Scincus Uoulonii) 



FISHES. 

 The history of this class of vertebrated animals, has hitherto been very 

 imperfect till now that Cuvicr, and his fellow labourer Valenciennes. 

 have given to the world it history of fishes, which their united talent has 

 rendered as perfect as possible. The two first volumes of this work 

 have been finalized by Mr. J. Desjardins, in a notice which was read to 

 the Society : he dilated only on the portion of the work relating to the 

 Mauritius. 



Mr. Th. Delisse read, at three sittings, descriptions of several Species 

 of fishes, — which are, 



1. A Chetodon of the subgenus Heniochus. (Cuv.) 2. A Holocanthus. 

 (Cuv.) 3. An Ophidium, of the same author. These inhabitants of our 

 seas have been figured by our young colleague, with the utmost accuracy ; 

 of which no better proof need be given, than that the illustrious Secretary 

 of the Koyal Academy of Sciences at Paris lias expressed great satisfac- 

 tion with this talent of his. 



ANNELIDES. 



We have now arrived at the invertebrated animals, of which our island 

 possesses such variety, especially of the marine species. 



Mr. Licnard, junr. has read a description of u species of the genus 

 Amphitrite. It has been beautifully figured by Mr. Couran. Though 

 this species be abundant on our coasts it appears to be new. Our young 

 colleague has modestly hesitated to affix a name to it. He described, n't 

 another sitting, five other species of the same genus, of which those seem 

 to be new, ami have received the names of Amphitiilu fuscata, A. albi- 

 cans, and A. tricolor; the other two are described by Lamarck, in |1„. 



Natural History of Invertebrated Animals," they aro the A. volulueor- 

 niM, and A. splendida. They inhabit the coasts of the island. 



Mr. J. Hesjirdins, in a description which ho has given of a fresh-water 

 species of Erpubdella (Erpobdella), has preserved the name of Sex- 

 lineata, which Messrs. Quoy and Gaimard had, in 1828, given to a 

 doubtful sort of this class. 



CRUSTACEA. 

 Three species of the Crustacea of our island, have been described in 

 detail by our young colleague, Mr. Lienard, (cadet.) They belong to 

 the genera La pea Pluguria, and cancer of modern authors. The exact- 

 ness of theso descriptions render it easy to determine the authenticity of 

 these discoveries of our colleague, and his consequent right to assijrn 

 names to them. fa 



Mr. Delisse (Father) having examined all the parts of the Scyllarus 

 Orientals, (Eabr.) and considering the disposition of its orbits, has 

 proposed to constitute, of the species, a new genus, under the title of 

 hcyllibacus, ranking intermediate between the Scyllarus (Fabr.) and the 

 Ibacus (Per.) Our Howard sans comes, as it is named by the fisher 

 men, is the Scyllibacus Oriontalis of Delisse. Our island is so rich in 

 Crustacea, that even after the abundant harvest which, during several 

 years, the Colonel of Artillery, Mathiew, employed himself in gathering 

 many species are still undiscovered, and we may perhaps find some 

 "hi, I, must take their places in this new genus. 



