ADDITIONAL ADDENDA. 



Since the publication of Part III of this work a number of 

 new genera and species of fishes have been described from 

 localities within our limits, and our knowledge regarding the 

 relations and distribution of previously known species has 

 been enlarged. These additions and corrections are given in 

 the following pages : 



Pae 130. After Nexamenatichthys rugispinus (Cuvier & Valenciennes), 

 insert the following : 





195 (a). GALEICHTHYS LABIATUS (Boulenger). 



Head 3i; width of head 1* in its length; depth 5; eye 9 in head. 



. I, 7; A. 17. Band of premaxillary teeth 4 times longer than wide, the 

 width half the eye: palatine teeth conical, in 2 small oblique groups, 

 much smaller than eye, and separated by a space equal to f the length of 

 premaxillary band; eye situated above level of mouth, in anterior half of 

 head, 4 in interocular space ; occiput and occipital prolongation granular, 

 this last a little longer than wide, with an obtuse spine; fontanelle 

 narrow, not distinct, followed by a groove which does not reach the 

 occipital prolongation ; lips thick, the upper overhanging the lower, as in 

 G. rngiapimw, to which this species is closely related ; barbels flattened; 

 maxillary If in head, not reaching edge of opercle; external mandible 1 

 times as long as internal, 2 in head; gill membrane with a free, unbroken 

 edge; dorsal spine with indistinct serrations, covered with skin, its length 

 a little less than i head ; adipose dorsal as long at base as rayed dorsal, 

 twice as far from it as from the caudal ; humeral prolongation smooth ; 

 pectoral spine 2-i- in head, enveloped in skin like the dorsal spine, much, 

 shorter than the soft rays ; ventral shorter, reaching origin of anal ; caudal 

 deeply forked, with pointed lobes ; caudal peduncle 24- times longer than 

 deep ; no maxillary pore. Blackish gray above, silvery below ; all the fins 

 blackish. Length 470 mm. Known only from a single specimen from 

 Rio Peripa, Ecuador. (Boulenger.) (labiatus, having large lips.) 



Arius labiatus, BOULENGER, Bollettino del Mus. di Zool. ed. Anat. Comp. della TTmv. di 

 Torino, Yol. xin, !No. 329, 6, Dec. 2, 1898, Rio Peripa, Ecuador. (Coll. Dr. Enrico 

 Festa.) 



3137 





