OF BIRDS. 131 



*2155. RISSA, Leach, 1825 (in Steph.). Lams, Linn. 1/58, nee 

 1735. Cheiraonea, Kaup, 1829. Chimonea, Agass. 

 (Larus tridactylus, Lath.} 



Subfam. IT. RHYNCHOPSIN^, Pr. B. (G. of B. p. 656). 



YNCHOPS, Linn. 1758. Rhynchops, Lath. 17 



Rygchopsalia, Briss, 1760. Anisoramphus, Dum. 



lidoramphos, Ranz. 1 823. Rynchopsalia, Aliq. P 



lacrpcorax, Mathr. 1752? (Rynchops nigra, Linn.) 



Subfam. III. STERNIN^E, Pr. B. (G. of B. p. 658). 



*2157. STERNA, Linn. 1748. Hydrocecropis, Boie, 1844. 

 (Sterna hirundo, Linn.) 



2158. THALASSEUS, Boie, 1822. Sterna, Gm. 1788 et Boie, 



1826. Hydroprogue, Kaup, 1829. Sylochelidon, 

 Brehm, 1830. Helopus, fFo^. 183. (Sterna caspia, 

 Pall.) 



2159. PELECANOPUS, Wagl. 1832. (Sterna pelecanoides, 



Vig.) 



2160. SEENA, JB/. 1849. (Sterna seena, Sykes.) 



2161. HALIPLANA, et Planetis, et Onychoprion, Wagl. 1832. 



(Sterna fuliginosa, Gm.) 



2162. ACTOCHELIDOX, Kaup, 1829. Thalasseus, p. Boie, 



1822. (Sterna cantiaca, Gm.) 



2163. -- ? Thalassaea et Thalassea, Kaup, 1829. Sterna, 



Brehm, 1831. (Sterna paradi sea, Brun.) 



2164. STERNULA, JBoie, 1822. (Sterna minuta, Linn.) 

 *2165. HYDROCHELIDON, Boze, 1822. Viralva, Leach, 1825 



(in Steph.). (Sterna nigra, Linn.) 

 2166. PELODES, Kaup, 1829. (Sterna hybrida, Pall.) 

 *2167. PH^TUSA, fFcr^/. 1832. Thalassites, Sw. 1837. Phae- 



thusa, Agass. Phoetusa, G. R. Gr. 1840. (Sterna 



magnirostris, Licht.) 



*2168. GYGIS, Wagl. 1832. (Sterna Candida, Forst.) 

 *2169. ANGUS, Leach, 1825 (in SfepA.). Sterna, Linn. 1758, 



nee 1735. Nodinus, Rafinq. 1815? Noddi, Cut?. 



1817. Megalopterus, Boie, 1826. Stolida, Lm. 1831. 



Gavia, Sw. 1837, nee JkMr. 1752. (Sterna stolida, 



Linn.) 



