180 



CALIFORNIA ACADEMY OF SCIENCES 



Measuremetits in Hundredi/is of Letigth without Caudal. 



(Type) ,5 



Length without caudal in mm 



Length of head 



Length of snout 



Length of maxillary 



Diameter of orbit 



Interorbital width 



Depth of body at ventral 



Least depth of caudal peduncle 



Distance from snout to spinous dorsal. 



Distance between front of dorsals 



Base of second dorsal 



Distance from snout to anal 



Base of anal 



Length of caudal peduncle 



Height of longest dorsal spine 



Length of pectoral fin 



Length of ventral fin 



Length of caudal fin 



35 



33 



8 



i7i 

 5 



i4 



i7i 

 8 



43 

 15 

 35 

 6o 



31 



lO 



30 

 14 

 19 

 25 



32i 

 33| 



74 

 17 



5i 



2 



174 

 8 



44 



16 



344 

 61 



30 

 10 



38 

 16 



23 

 27 



31 

 324 



7 

 15 



6 



14 

 17 



74 

 424 

 i6i 



354 

 64 



16 

 i6i 

 22 

 26 



324 

 32 



7 

 134 



6 



14 



18 



74 

 414 



36 

 62 



30 

 8 



154 



15 



21 



24 



321. Tyntlastes brevis (Giinther). 



This species is known from the type, and from two partially digested speci- 

 mens taken from the stomach of a Centropomus (Gilbert, 18906, p. 451). 



Family ECHENEIDID^E. 

 322. Echeneis naucrates Linnceus. 

 Recorded from the Gulf of Panama by Boulenger (1899, p. 3). 



323. Remora remora (Linnceus). 

 Obtained at Panama by Gilbert (Jordan, 1885, p. 372) ; not seen by us. 



Family OPISTHOGNATHID^. 



324. Opisthognathus punctatum Peters. 



Recorded from Panama by Jordan (1885, p. 389) on specimens secured by 

 Gilbert; not seen by others. 



