ADDENDA - 70. ECHENEIDIID^E - PIITHIRICHTHYS. 969 



Page 356. Gymnotlwrax Blocb & Schneider, is properly a synonym of 

 Murcena. The oldest tenable name for the subgenus, called in the text 

 11 Gymnothorax" seems to be 8ide,ra* Kaup. 



Page 358 (899). The type of the genus OpMchthys Ahl is, according 

 to Poey, Murcena annulate Ahl, which is a species of Pisodontopkis. 

 Genus 170 must therefore stand as Murcvnopsis LeSneur, and 170 (b] as 

 OpJiichthys Ahl. 



Page 302. Instead of Conger read : 



174. L.EPTOCEPBIAL.US Graelin. 



The two species may stand as 588, L. conger (L.) J. & G. and 588 (6), 

 L. caudicula (Beau) J. & G. 



Page 406. We are indebted to Mr. Joseph Swain for the following 

 key to the species of Menidia : 



a. Scales more or less laciniate; soft dorsal and anal scaly. 



b. Anal rays I, 14 to I, 18; D. V-I, 7; Lat. 1. 48; dark points on scales of back, 

 forming about 5 distinct streaks ........ ...................... VAGRANS. 



66. Anal rays I, 19 to I, 21; D. IV-I, 7 or 8; Lat. 1. 50 ................. LACINIATA. 



aa. Scales entire; soft dorsal and anal naked. 



c. Anal fin rather short, its rays I, 15 to I, 18 ; depth about 5 in length. 

 d. "Dorsal rays V-I, 11" ......................................... BERYLLIXA. 



dd. Dorsal rays IV-I, 8 or I, 9. 



e. Scales rather small; Lat. 1. 47; origin of spinous dorsal midway between 

 front of eye, and base of caudal above ......................... AUDKNS. 



ee. Scales large; Lat. 1. 38; origin of spinous dorsal midway between tip of 

 snout and upper base of caudal ..................... ........ PENINSUL/K 



cc. Anal fin rather long, its rays I, 22 to I, 25. 



/. Body rather deep, compressed, its depth 5 in length; head 4f ; teeth 

 rather strong ................................................... Bosci. 



ff. Body elongate, its depth 6 in length ; head 5 .................. NOTATA. 



Page 413. The species of Polynemus have three anal spines. 

 Page 416. After Echeneis naucrates add: 



2O6 (6). PH THIRICHTH YS Gill. 



(Gill, Proc. Ac. Nat. Sci. Phila. 1832, 239: type Eclieneis lineata Menzies.) 



Dorsal laminas only 10; palatines with sharp teeth; otherwise as in 

 Echeneis proper. (pOelp, a louse; ^^u?, a fish.) 



657 (&). P. Mmeatus (Menzies) Gill. 



Disk twice as long as broad, its length 4 in body; lower jaw very 

 narrow, much projecting. Head 5 in length. Body blackish, with two 



*Kaup, Apodes, 1856, 70: type Murcena pfeifferi B!eeker = M wcena plcta Ahl. (Latin 

 sidus, a star, from the stellate spots in the typical species.) 



