187 



cinered, in medio nigro unifasciatd ; rectricibus extimis tribvs 

 utrinąue ulbo, cateris olivaceo-cinereo, apiculatis. 



Long. tot. 12^ poli. ; roslri, l-į^ ; alce, OĮ-; caudce, 54-; tai'si, 2. 



Rostrum nigrescenti-brunneum ; tarsi bruniiei. 



Hab. in Nepalia. 



Ianthocincla albogulaeis. lanth. supru et ad pectus olivaceo- 

 cinerea, subtiis ferrugineo-aurantiaca ; caudd rotundatd, olivaceo- 

 cinered, rectricibus extimis utrinque guatuor ad apices late albis. 



Long. tot. 114-poU. ; rostri, \-k ; alce, 5-^; caudee, 5-J- ; tarsi, 1-į. 



Rostrum tarsiąne brunnei. 



Hab. apud montes Himalayenses, in Nepalia, &c. 



Nearly aJlied to lanth. leucolopha, (Corvus leucolophus, Lath.) . 



A paper was read, entitled " Mėmoire sur une Nouvelle Espėce 

 de Poisson du Genre Histiophore, de la Mer Rouge : par M. E. Riip- 

 pell, M. D., Memb. Ext. Z. S." It was accompanied by a drawing 

 of the fish described in it. 



MM. Cuvier and Valenciennes have described, in their ' Histoire 

 Naturelle des Poissons,' three species of Sword-fishes of the genus 

 Histiophorus ; from all of -vvhich Dr. Rūppell regards his fish as di- 

 stinct, although it apparently approaches most nearly to Hist. Ame- 

 ricanus : it should seem that its occurrence at Djetta, on the coast 

 of Arabia, \vas only accidental, as the Arab fishermen knew no name 

 for it. The most strildng peculiarity of the new species is the uni- 

 fonnity of the colour of its dorsal fin : in all those which ■vvere pre- 

 viously known the first dorsal fin is varied -svith spots ; in the one 

 obtained by Dr. Riippell, the first dorsal fin is black throughout and 

 destitute of spots, on which account its discoverer proposes for it 

 the name of 



HisTioPHOKUs iMMACULATUs. Hist. pintiis pectoralibus mediocri- 

 bus ; dorsali nigrd, immaculatd. 

 D. 47, + 7. A. 10, + 7. C.5 + 17 + 5. P. 1 + 19. V. 3. 



Pinnae pectorales quam in Hist. Indico, Cuv. & Vai., muito mi- 

 nores : utpote quae in illo į- vel -f corporis longitudine seąuant, in 

 Hist. immaculato iV tantum. In Hist. pulchello prseoperculi angu- 

 lus spina munitus : in Hist. immaculato aliisąue inermis. Hist. 

 Americani pinna dorsalis cinereo-argentea, macuUs brunneis rotun- 

 datis omata. 



Dr. Riippell describes the fish in considerable detail. He has not, 

 however, examined it anatomically, on account of his possessing 

 only one specimen, -vvhich he had deposited in the Frankfort Mu- 

 seum. 



The foIlowing notes by Sir Robert Heron, Bart., were read. 



" In many books that I have seen some errors are made in the 

 history of the Kangaroos, which my long possession of those animals 

 enables me to correct. 



" The great Kangaroo does not make use of his tail in leaping. 

 He uses it in walking, and still more in standing. When excited. 



