I 



798 PROCEEDINGS OF THE NATIONAL ^rUSEUM. vol. xxx. '} 



I 



of lateral spot; sometimes a faint trace of one under fourth or fifth 

 dorsal spine. Bod}' and fins of lari>e specimens darker than in small 

 ones, and more or less conspicuous, broken, lonoitudinal stripes follow 

 the rows of scales on sides. The specimen from Etcn, Peru, differs 

 from the others in having- the lower part of the head coal black up to 

 a level with the mouth. 



Family POM AC^ENTRID.E. 



78. CHROMIS CRUSMA Cuvier and Valenciennes. 



Two specimens from C'allao, Peru. 



Family KPIIIPPID.E. 



79. CHiETODIPTERUS ZONATUS ( Girard) . 



One speciuKMi t'i'om (Tuaya(juil, Ecuador. 



80. PARAPSETTUS PANAMENSIS Steindachner. 



Three specimens from (iua^'aiiuil diti'er from specimens from Panama 

 oidy in being" ever\'where nuich darker. 



Family BALISTID.E. J 



81. BALISTES NAUFRAGIUM Jordan and Starks. ' 



Six specimens from 15 to 17 cm. in length were ol)tained at Guaya- 

 (juil, Ecuador. They ag'ree in number of scales, tin rays, and propor- 

 tions with specimens from Panama, but are much rouoher. The first 

 dorsal si)ine is more thickly set with spinules, making it thicker. The 

 soft tin rays are constantly '2i) in the dorsal and 24 in the anal. B. 

 <((lnj)er-'<tis Tschudi, as descril)ed, has 24 rays in the doisal and 20 in the 

 anal, ])esid(>s dift'erino- in depth, coloration, and minor characters. In 

 these small specimensof 7>. nmifra'j'niin and in specimens from Panama 

 of \\ similar size the eyes are connected across the iiiteror])ital space 

 ])}' two narrow dark bai's; one ])etween the posterior orbital margins 

 and one somewhat behind the anterior margins. 



Family TETKAODONTID.E. 



82. SPHEROIDES FURTHI (Steindachner). 



Foul" specimens 4 to 1» cm. in length from (Tuaya(]uil, Ecuador, seem 

 to be referable to this species. It may be distinguished from other 

 west coast species of this genus by the large eye as compared with the 

 interorbital space and length of snout. 



Head, 2^ to 3 in length to base of caudal. Eye, 3f to 4 in head; 

 interorbital sp;ice (bone) equal to eye; snout, 2^ to 2.V. Dorsal, 8; 

 anal, 7. 



