188 SUPPLEMENT. 



Dr. Meek (Publ. Columbian Mus., Zool. vii. 1907, p. 140) compares this species 

 with C. trimaculatum, from which it is said to differ in several features, none of which 

 are very marked. 



Cichlosoma motaguense (p- 29). 



Recorded from Belize by Meek (Publ. Columbian Mus., Zool. vii. 1907, p. 151). 



Cichlosoma managuense (p. 29). 



Recorded from Lago de Guila in Nicaragua by Meek (Publ, Columbian Mus., Zool. 

 vii. 1907, p. 152). 



HERICHTHYS (p. 30). 



Examination of a large series of examples of Herichthys cyanoguttatus received 

 recently shows that the pointed inner teeth are more or less compressed. The genera 

 Herichthys and Paraneetroplus may nevertheless be maintained, the former including 

 species with slender teeth, those of the outer series in the lower jaw gradually 

 decreasing in size and becoming acutely pointed laterally. This genus includes 

 //. cyanoguttatus, H. hocovrti, and H. geddesi, whilst Ciarman's Heros pavonacetis 

 probably belongs here also. 



PARANEETROPLUS (p. 31). 



This genus differs from Herichthys in having broader and more strongly compressed 

 teeth. The outer series in the lower jaw is transverse, formed of subequal teeth with 

 rounded or obtusely pointed apices ; it ceases abruptly and does not extend back on 

 the sides. Heros sieholdii, Kner & Stdr. (of which Herichthys underwoodi, Regan, is 

 a synonym), from Costa Rica and Panama, belongs to this genus. 



NEETROPLUS (p. 31). 



Neetroplus nematopus (p. 31). 



Recorded from Lago de Guila in Nicaragua by Meek (Publ. Columbian Mus., Zool. 

 vii. 1907, p. 153). 



SCI.ffiNID^ (pp. 31, 32). 

 Micropogon undulatus, C. & V. (Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1898, 

 p. 1461), is a marine species ranging from Cape Cod to Montevideo. It has been 

 recorded from Lake Yzabal by Vaillant and Bocourt (Miss. Sci. Mex., Poiss. 1874). 



GERRES (p. 37). 



The characters of G. peruvianus and 6. olithostomus have unfortunately been 

 transposed in the synopsis of the species (p. 38). It is G. ])eriiviaiius which has the 

 mouth smaller and the scales of the thoracic region larger. 



