— 136 — 
IV. GAVIAE (GAVIA’S). 
STERNI . . . (ZEEZWALUWEN). 
399. Hydrochelidon leucoptera = en Schinz) 
SAUNDERS. Cat. Birds Brit. Mus. XXV. 50% 
Sterna grisea HorsFIELD. Trans. Linn. ad XUL p. 
(diagn.; nom. javan.). 
Hydrochelidon nigra VORDERMAN. Java-Vogels I. Nat. Tijds. 
Ned. Ind. LI. p. 413. (descript.). 
400. Hydrochelidon hybrida (Pall.) 
SAUNDERS. Cat. Birds Brit. Mus. XXV. p. 10. ER 
Id. VoRDERMAN. Batavia-Vogels IL Nat. Tijds. Ned. In 
XLII. p. 126. (descript.). 412. 
Id. Ip. Java-Vogels I. Nat. Tijds. Ned. Ind. LI. P. 
(descript.; nom. maladie S 
Sterna javanica HORSYIELD. Trans. Linn. Soc. XIIL p. 198. 
(diagn.). 
401. Gelochelidon anglica ee 
SAUNDERS, Cat. Birds Brit. Mus. XXV. p. 25. 199 
Sterna affinis HORSFIELD, "Trans. Linn. ps XUL p. 19% 
(diagn.). 
402. Sterna media ër ) 
SAUNDERs. Cat. Birds Brit. Mus. XXV. p. 86. 
Id. HorsrieLp. Trans. Linn. Soc. XUL p. 199. (diagn-; 
. mom. javan.). 
403. Sterna bergii ab 
SAUNDERs. Cat. Birds Brit. Mus. XXV. p. 89. e 
Id. Vorbermax. Molukken-Vogels. Nat. Tijds. Ned. INT 
LVII. p. 251. (descript.). Ned 
Sterna cristata Ip. Noordwachter-Vogels. Nat. Tijds. DÉI: 
Ind. LIV. p. 325. (descript.). 
404. Sterna anaestheta (Scop.) 
SAUNDERS. Cat. Birds Brit. Mus. XXV. p. 101. 
