148 Field Columbian Museum — Zoology, Vol. VII. 



ways the oldest. The specimen in the Museum which has the thickest 

 lips is 2-20 mm. in length, the largest specimen is 240 mm. in length. 



Santo Domingo, 200 meters (i), 118 mm.; near Turrialba (i), 

 98 mm. ; El Sardinal, Santa Clara (i), 235 mm. 



Joturus pichardi Poey. Bobo. 



Very common in the markets. 



Reventazon River, Costa Rica, 600 meters (i), 300 mm.; El Sar- 

 dinal, Santa Clara (i), 270 mm. 



. Family Tetraodoiitidje. 



Eumycterias punctatissimus (Giinther). 

 Isle del Coco (i), 67 mm. 



Family Ciclilidse. 



Cichlasoma alfari sp. nov. 



Type No. 6032, F. M. N. H.; length 93 mm.; Turrialba, Costa 

 Rica. 



Head 2.6; depth 2.4 to 2.6; D. xvii or xviii, 11; A. vi or vii, 

 8; scales 7-32-13. Body compressed, elongate, profile moderately 

 convex; mouth small, little oblique, the margin of the upper lip below 

 the level of the eye; lower lips without free margin; snout pointed, 

 2.3 to 2.6 in head; maxillary 3.3 to 3.4; mandible 2.4 to 2.5; preor- 

 bital 3.7 to 4.3; postorbital 2.7 to 2.8; eye 2.9 to 3.1 ; interorbital 3.2 

 to 3.5; eye to subopercle 2.6 to 2.9; dorsal fin low, its origin to tip of 

 snout 2.2 to 2.3 in body; base of anal fin 3.4 to 3.7 ; dorsal spine rap- 

 idly increases in size to fourth, the rest of nearly uniform length ; last 

 dorsal spine 2.8 to 2.9 in head; last anal spine 2.4 to 2.7; pectorals 

 reaching to second or third anal spine, length 1.3 in head; ventral 

 1.3; least depth of caudal peduncle 2.8 in head, its length 3.0; scales 

 on cheek in 6 rows ; gill rakers short 3+9. 



Color of type olivaceous, upper half of body with slight traces of 

 vertical bars; a dark band from eye to base of caudal; no lateral 

 spot ; a smAll black spot on upper half of base of caudal fin ; sides of 

 head and anterior half of body with many small blue spots ; a black 

 blotch on spinous dorsal from fifth to twelfth spine; spinous dorsal 



