Edenkdous Genera of Curimatince. 415 



«,nd inner surface of the lower jaw dark brown. A U-shaped dark bar 

 in base of mouth. Inner surface of opercle with brown dots. 

 Head 3^; depth 3. D. 12; A. 11. Scales 14-60-?. 



5. CLRIMATIJS. 



<1Les Curimates Cuvier, Regne Animal, II., 165, 1817 (edentulus). 



Type, Sahno edentulus Bloch. 



This genus maybe divided into a number of groups which are 

 probably of subgeneric rank. They are : 1. Those species with 

 the caudal entirely scaled. 2. Those with the postventral re- 

 gion rounded. 3. Those with the postventral region trenchant. 

 4. Those with more than 80 scales in the lateral line. 



* Lateral line less than 80. 

 f Caudal lobes thickly scaled to their tips. (Curimatella subg. nov.) 

 a. Scales 9-43 to 45-7. lepidurus, 1. 



aa. Scales 5 or 6-33 to 41-5. 

 b. Depth 3|-3^ in the length. meyeri, 2. 



&2. Depth 3, or less than 3, in the length, 

 c. Scales 6-39 to 41-5. Predorsal region sharply keeled. 



serpce, 3. 

 Ca. Scales 5-36 to 38-5. Predorsal region broad, with indis- 

 tinct median keel. alburnus, 4. 

 Cz. Scales 33 to 35. A blackish longitudinal line on the 

 scales of the back. alburnus Uneatus, 4a. 

 If. Caudal lobes mostly naked. (Curimatus). 

 t Postventral region rounded or with an obtuse median keel. 

 d. Sides without spots. 

 e. A black spot at base of middle caudal rays. 

 /. Dorsal plain. Sides without a dark line. 

 g. Lateral line 33 to 35. 

 h. Depth 2f to 3i in the length. 

 i. Predorsal region depressed or grooved to near 

 the dorsal. spihirus, 5. 

 {•2. Predorsal region keeled. spiluropsis, 6. 

 h2. Depth 2f to 2^. Predorsal region keeled. 



dorsalis, 7. 

 g2. Lateral line more than 40. 



j. Lateral line 42 to 43. nasus, 8. 



J2. Lateral line 46. No adipose eyelids. 



troschelii, 9. 

 f-i. Base of middle dorsal rays dark. 



h. A dark line on sides. Lat. 1. 33 to 37. 

 I. Depth 3i-3|. elegans, 10. 



^ 



