24, ERTTHBICHTHTS. 395 



seventh of the total length, the length of the head about one-fourth. 

 The upper maxillary scaleless, reaching to the anterior margin of the 

 eye. Coloration uniform. (Bl.) 

 Sea of Temate. 



24. ERYTHRICHTHYS. 



Erythrichthys, Tetnm. Sf Schleg. Faun. Jupoii. Poiss. p. 117. 

 Emmelichthys, Richards. Voy. Ereb. Sf Terr. Fishes, p. 47. 

 Boxaodon, Gay, Hist. Cliil. Zool. ii. p. 208. 

 Dipterygonotus, Bleek. Contr. Ichth. Celebes. 



Form of the body elongate ; eye moderate ; the mouth very pro- 

 tractile, the processes of the intermaxillaries extending to the occiput. 

 Two dorsals, with several isolated spines between ; all the spines 

 feeble. Caudalis forked. No teeth in the jaws or in the palate ; 

 the lower pharyngeal bones separated from each other, and, hke 

 the upper ones, armed with cardiform teeth. Praeoperculum entire. 

 Scales rather small, ciHated. Seven or six branchiostegals. Pseudo- 

 branchiae. 



Molucca Sea ; Sunda Sea ; Australian Seas ; Pacific. 



1. Erythrichthys schlegelii. 



Erythrichtliys, sp., Temm. iSI' Schleg. Faun. Japan. Poiss. p. 117. 

 pi. 63. f. 1. 



B.6. D.10|A A.i;. 



The angle of the praeoperculum is a right one, not rounded. Uni- 

 form red. 



Japanese Sea. 



The figure of this species given in the Fauna Japonica does not 

 show isolated spines between the dorsals ; but it is highly probable, 

 from its great similarity to the following species, that such exist. 



2. Erythrichthys nitidus. 



Emmelichthys nitidus, Richards. I. c. pi. 29. f. 7, 8. 



B. 7. D. 9 I 3 I ^. A. ^. L. lat. 96. L. transv. 8/20. 



XJnifonn greyish silveiy. The angle of the praeoperculum rounded. 

 West Australia ; New Zealand. 



a. Adult : skin New Zealand. Presented by Mr. Frederic Knap. 

 6. Adult : skin. 



3. Erythrichthys cyanescens. 

 Boxaodon cyanescens, Gay, I. c. p. 209, Atl. Ictiol. lam. 5. f. 1. 



D. 8 I 5 I 10. A. 



2 (3?) 

 12 * 



Uniform bluish green. 

 Sea of Valparaiso. 



This fish decidedly belongs to the genus Ei'ythrichthys of Hchlegol. 



