BY J. DOUGLAS OGILBY. 39 



Total length 210 millim. 



From the coast of Sind to the Philippines and Northern 

 Australia. 



Described from a specimen, 195 millim. long, taken 

 by Mr. John Colclough at Croker Island, Northern Terri- 

 tory, and presented by him to the A.F.A.Q. Museum ; 

 Cat. No. 994. 



Of the 46 species of Cynoglossus, the descriptions of 

 which I have been able to consult,* six only are provided 

 with a pair of lateral lines on each side. These are as fol- 

 lows : — , 

 a. Scales ctenoid on both sides. 



1. kaupii Bleeker, Act. Soc. Sci. Ind. Neerl., viii, 



1860, Sumatra 8, p. 73. 

 aa. Scales ctenoid on the eyed, cycloid on the blind side. 



2. diplasios Jordan & Evermann, Proc. U. S. Nat. 



Mus., XXV, 1902, p. 367 : Formosa — Interlinear 

 scales 14. 



3. bilineatus Lacepede,| Hist. Nat. Poiss., iv., 1802, 



pp. 659 and 663 : Indian Seas — Interlinear scales 

 14 or 15. 



4. dispar Day, Fish. India, pt. 3, 1877, p. 434: 



Bombay — Interlinear scales 18 or 19. 



5. sindensis Day, ibid. : Sind — Interlinear scale? 19 



or 20. 

 aaa. Scales cycloid on both sides. 



6. dubius Day, Journ. Linn., Soc, xi., p. 525. 



* Eleven species are described in works not available to me. Of these 

 a South African species has been named C- brachycephalus by Dr. Gilchrist, 

 but this name, having been previously utilized by Bleeker for a Sumatran 

 species, is inadmissible, and may appropriately be altered to C. gilchristi, 

 after its discoverer. 



fLacepede's name was altered by Bleeker to quadrilineatus, presum- 

 ably to avoid confusion with Plagusia bilineata, and his example has been 

 followed by Giinther, Day, and others ; this course, however, is not 

 only unnecessary but absolutely subversive of the code of zoological 

 nomenclature, since Lacepede described the fish which is here called 

 C. bilineatus as Achirus bilineatus ^ and, there being no other species of that 

 name, his specific name passes unquestionably on to the Cynoglossus. 



