212 Flat Fishes of Natal 
CROSSORHOMBUS DIMORPHUS. 
Platophrys dimorphus, Gilchr. Mar. Inv. 8. Afr. ITT, 1905, p. 10, pl. 
XXVil. 
Depth of body 1} to 2 in length, length of head 4. | Diameter of 
eye 3} in length of head, less (male) or greater (female) than inter- 
orbital width. Snout short ; mouth small; maxillary not or barely 
reaching vertical from anterior edge of eye. Male with a spine on the 
snout and with spines on the orbital margins. Dorsal 85-88. Anal 
68-72. Upper pectoral ray produced in adult male. 50 scales in a 
longitudinal series. Greyish, spotted with darker. 
Natal ; off mouth of Umhlanga River; depth 22-26 fathoms. 
Two specimens examined, 110 and 120 mm. in total length. 
5. Boruus. 
Bothus (Rafinesque, 1810), Kyle, Rep. Danish Ocean. Exped. IT, A. 
LV U913)5 p50 4 
Platophrys, Swainson, Nat. Hist. I1, p. 302 (1839). 
Rhomboidichthys, Bleek. Act. Soc. Sci. Ned. Ind. I, 1856, Manado 
and Macassar, p. 67. 
This genus differs from Crossorhombus only in the smaller scales 
and in having the membrane joining the operculum to the pectoral] 
arch scaleless. 
Mediterranean, Tropical Atlantic and Indo-Pacific. 
One species from Natal. 
Boruus PANTHERINUS. 
Rhomboidichthys pantherinus (Riipp. 1828), Giinth. Cat. Fish. IV, p. 
436 (1862). 
Platophrys pantherinus, Bleek. Atl. Ichth. VII, p. 11, pl. cexxxin, 
fig. 3 (1866); Day, Fish. India, p. 425, pl. xcii, figs. 3, 4 
(1878). 
Depth of body 1} to 2 in the length, length of head 34-4. Inter- 
orbital width nearly equal to diameter of eye (adult male), or less ; 
eye 34 to 4 in length of head. | Anterior profile of head convex. 
Maxillary extending to below anterior } of eye. Males with rostral 
and supraocular spines. Dorsal 85-93. Anal 65-70. Pectoral, in 
