24 Memoirs of the Indian Museum. [Vol. Ill, 



Three specimens were added to the Museum collection from the "Golden 

 Crown." 



No. Localit5^ Length. 



2139. Off Elephant Pt., Arakan Coast, July, 1909 .. 357 cms. 



3634. Off vSantapalii, Madras Presidency, October, 1909 . . 17-6 ,, 



3644. Off Gopalpur, ,, ,, .. .. 27-3 ,, 



PsEUDORHOMBUS, Bleeker. 



Three species of Pseudorhombtis are represented in the collection, viz. : — 

 Pseudorhomhus arsius, Bleeker. 

 Pseudorhombus javanicus, Bleeker. 

 Pseudorhomhus russellii, Gray. 



As is the case in British Pleuronectidae, there is a considerable variation in 

 colour and marking within the limits of a single species. This is especially notice- 

 able in the case of the specimens of Pseudorhombus arsins. The presence of interme- 

 diate specimens between the extreme colour varieties, however, renders it certain 

 that only one species is represented. 



Pseudorhombus arsius, Bleeker. 



This species is distinguished from the nearly related P. javanimis by the larger 

 number of dorsal fin rays (over 70) and the enlarged anterior teeth. 



Nc. Localit5^ Length. 



F2ii2 Off Elephant Pt.. Arakan Coast, "Golden 



Crown" . . . . . . . . 18 



cms. 



F '^^f^ Puri beach, Dr. N. Annandale . . . . 20-8 cms. 



F ^^3^ Ten specimens. Balasore Bay, "Golden 



Crown" .. .. .. i6-i, 16-9, 19-4, 



217, 22-8, 23-3, 24-6, 

 25-8, 26^1, 27-1 cms. 

 F ^V- Balasore Bay, ' ' Golden Crown " . . . . 249 cms. 



F ^^ji- Five specimens, namely :- - 



P,, P,, P„ P, and P,, Puri beach. Dr. N. 



Annandale .. .. .. 157, 18-4, 19-5, 



21-5, 21-6 cms. 

 F ^^1^^ S. Orissa, " Golden Crown " . . . . 178 cms. 



Pseudorhombus javanicus, Bleeker. 



Day in his description of this species says "A well-developed pre-anal spine," 

 whereas in P. arsius the " pre-anal spine, when present, is but slightly apparent." 



According to my observations this spine is occasionally well-developed {vide 

 Nos. F =\-^ or F -^r^, Pj and more often absent (vide other specimens). Possiblj 



