4. BALIS^ES. 221 



brownish olive ; an indistinct blackish band between the eye and 

 the root of the pectoral fin. Scales generally with the centre darker. 

 Posterior margin of the caudal fin blackish. 

 Indian Ocean ajid archipelago. 



fl. Adult : stufFcd. Red Sea. From Dr. lliippell's Collection. 



b. Half-grown : stuffed. Zanzibar. From Lieut.-Col. Playfair's 



Collection. 



c. Adult (20 inches) : stuffed. Mauritius. From Dr. Janvier's 



Collection. 



/3. Cheeks with naked grooves or stripes. 



13. Balistes ringens. 



Cocuyo, Parra, p. 19, lam. 11. fig. 2. 

 Balistes, sp., Grotiov. Zoophyl. uos. 190 tfe 19G. 

 Balistes ringens, L. Syst. Nat. i. p. 407. 



curassavicus, Gm. L. i. p. 1472 ; Bl. Schn. p. 475. 



notatus, Gronov. Si/st. ed. Gray, p. 36. 



nitidus, Gronov. I. c. (young). 



lineo-punctatus, Hollard, Ann. Sc. Nat. 1854, i. p. 65. 



cicatricosus. Poet/, Mem. Cub. ii. p. 327 ; and P)-oc. Acad. Nat. 



Sc. Philad. 1863, p. 181. 



D. 2 I 29. A. 27. L. lat. 38. 



Tail without spines or tubercles. Eighteen scales in a transverse 

 series running from the origin of the dorsal fin to the vent. No en- 

 larged plates behind the gill-opening. Teeth deeply notched, but 

 the front teeth do not much project beyond the line of the other 

 teeth. Cheeks with three very distinct naked, narrow, blackish lon- 

 gitudinal grooves. Anterior dorsal and anal rays and caudal lobes 

 but slightly produced. Ventral spine moveable. Each scale with a 

 blackish spot at the base ; the spots confluent into narrow longitxt- 

 dinal lines in examples from Mauritius. 



West Indies ; Mauritius. 



a. Seven and a half inches long : stuffed. Mauritius. From Dr. 



Janvier's Collection. 



b. Eight inches long : skin. Jamaica. Purchased of Mr. Parnell. 



c. Adult. Cuba. From the Collection of the Zoological Society. 



d. Adult : skin. From Gronow's Collection. — Type of B. notatus. 



e. Young : skin. From Gronow's Collection. — Type of B. nitidvs. 



f. Fine specimen, 9| inches long. Voyage of the ' Herald.' 



14. Balistes auromarginatus. 



Balistes auromarginatus, Benn. Proc. Comm. Zool. Soc. i. p. 168. 

 calolepis, Hollard, Ann. Sc. Nat. i. 1854, p. 67, pi. 3. fig. 5. 



D. 3 I 28. A. 25. L. lat. 43. 



Each scale on the tail and hind part of the trunk with a rough 

 keel. Twenty scales in a transverse series running from the origin 

 of the soft dorsal fin to the vent. No enlarged plates behind the 

 giU-opening. The scales on the cheek are separated by naked Ion- 



