BOTHIN.E 219 



the South African Museum. He finds that the nine examples in this bottle, measuring 

 up to 70 mm., are exactly similar to young specimens of C. dimorphtis. It must be 

 concluded, therefore, that specimens of two distinct species were originally included in 

 Gilchrist's series of so-called Plalophrys grandisquama . The two examples sent to 

 the British Museum undoubtedly belong to the genus Engyprosopon , the scales being 

 feebly ctenoid and the length of the maxillary 2| to 2f in that of head. 



I have identified Sea-ops knbensis with this species with some doubt, and it may 

 prove to be the same as Crossorhonibus aziirens. Unfortunately, the four examples 

 of kobensis in the British Museum are all females. Franz (1910), however, has given 

 an excellent figure of the male, showing the upper pectoral ray filamentous and longer 

 than the head. 



2. CROSSORHOMBUS AZUREUS (Alcock). 



Rhomboidichthys azureus, Alcock, 1889, J. Asiat. Soc. Beng., Iviii (2), p. 283, pi. xvi, fig. 3 ; Alcock, 

 1890, Ann. Mag. Nat. Hist., (6) vi, p. 435 ; Alcock, 189S, lUust. Zool- " Investigator ", Fishes, 

 pi. xxiv, (ig. 3 ; Johnstone, 190.1, Cevlon Pearl Ovster Fish., Suppl. Rep., xv, p. 210 ; Jenkins, 

 lOio, .Men.. Ind. Mus.,iii, p. 27. 



B.M. (N.H.) 1927.1.6.41,42. 



Platophrys microstoma, Weber, IQ13, " Siboga "-Exped., Fische, p. 427, pi. vii, fig. 3. 

 Crossorhombus azureus, Norman, 1927, Rec. Ind. Mus., xxix, p. 30 ; Wu, 1932, This. Facult. Sci. 



Univ. Paris, A. 244 (268), p. 93. 

 Bothus (Arno^lossus) microstoma, Weber and Beaufort, 1929, Fish. Indo-Austral. Arch., v, p. 126. 

 Bothus microstoma, Chabanaud, 1929, Bull. Mus. Hist. nat. Paris, (2) i, p. 379. 

 Crossorhombus azureus (part), Norman, 1931, .\nn. Mag. Nat. Hist., (10) viii, p. 600. 



Very close to the preceding species. Depth of body nearly twice in the length, 

 length of head 3J to 4. Diameter of eye 3^ to 3j in length of head ; membranous 

 flap in male much smaller : interorbital width f to i J times (^) or J to J (J) diameter 

 of eye ; anterior edge of upper eye above middle or anterior part of lower. Maxillary 

 extending to below anterior edge of eye or a little beyond, length 3? to 3* in that of 

 head. 5 or 6 gill-rakers on lower part of anterior arch. 52 to 57 scales in lateral line. 

 Dorsal 84-90. Anal 64-73. Pectoral of ocular side with 11 or 12 rays, the upper 

 ray not prolonged in the male; length § to J that of head. Greyish or brownish, 

 variously spotted and blotched w-ith paler and darker ; generally one, two or more 

 dark blotches on lateral line ; male sometimes with two or more series of dark spots 

 blue in life) on head in front of interorbital space ; median fins with dark brown or 



