445 



the dorsal fin descending to the ventral," but this is appar- 

 ently formed of the second and third bands, which, as onr 

 specimens show, are sometimes partly united and darker than 

 the others. 



Loc. — Our smallest example (34 mm.) was collected in a 

 rock-pool at Lord Howe Island.^ Mr. Lea obtained seven 

 specimens at Norfolk Island. Another (45 mm.) was secured 

 at Funafuti, Ellice Group. Two others, including the 

 largest figured specimen (74 mm.) were obtained in the New 

 Hebrides. 



Family LABBJDAE. 



Genus Thalassoma, Swainson. 



Th alas soma purpureum, Forskal. 



Julis trilobata, Ogilby : Mem. Austr. Mus., ii., 1889, p. 68; 

 Thalassoma trilobatum, Waiter Rec. Austr. Mus., v., 1904, pp. 

 171, 209 (not Labrus trilobatus, Lacepede). 



Julis purpurea (Forskal), Giinther : Jour. Mus. Godeff., xvi. 

 (Fische der Sudsee, viii.), 1909, p. 272, pi. cxlix., fig. a; 

 Thalassoma purpureum, Jordan and Evermann: Bull. U.S. Fish. 

 Comm., xxiii., 1, 1905, p. 295. 



Julis umbrostigma (Riippell), Giinther: loc. cit.. p. 294, pi. 

 cxlix., fig. b; Thalassoma umbrostigma, Waite: Rec. Austr. Mus., 

 iv., 1901, p. 41; Jordan and Evermann: loc. cit., p. 300, 

 fig. 129. 



The fishes recorded by Ogilby and Waite from Lord 

 Howe Island as T. trilobatum are properly referable to T. 

 purpureum. Labrus trilobatus, Lacepede, is regarded as 

 synonymous with L. fusci/s, Lacepede, by Jordan and Ever- 

 mann, which differs from T. purpureum in having no scarlet 

 markings on the head. 



The identity of T. umbrostigma and T. purpureum has 

 been suggested by both Klunzinger and Giinther, while Waite 

 has shown that they are merely growth stages of the one 

 species. 



T. purpureum is abundant on the reefs at Lord Howe 

 Island, while a Norfolk Island example is preserved in the 

 Australian Museum. 



Family CHEILODACTYLIDAE. 

 Genus Cheilodactylus, Lacepede. 

 Subgenus Goniistius, Gill. 

 Cheilodactylus (Goniistius) ephippium, n. sp. 

 . PL xliii., fig. 2. 

 D. xvii. 32-33 ; A. iii. 8 : P. 8, 5-6 ; V. i. 5 ; C. 15 ; L. lat. 

 €2-64; L. tr. 9, 1, 19. 



(5) It has been incorrectly recorded as G. brounriggii. Waite : 

 Prelim. Rept, Thetis Expecl., 1898, p. 61. 



