416 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 50. 



Table of counts and measurements, etc. — Continued. 



S. bcTgi 



S. plagusia, Jamaica. 



S. dongntus, Panama 



S. atricauda, lower California. 

 S. led, Panama 



8. fasciolarus, Pacific 



S. atrimentatus, Gulf of Calironiia. 

 S. williamsi, southern California. . , 



Length of 

 dorsal 



rays. 



0. 55 

 (.05-. 06) 

 .065 

 (.06-. 07) 

 .06 

 .07 

 .09 



(?) 



The above tabic will serve to distinguish the species to some extent, 

 but some additional characters, taken from specimens in the Stanford 

 University collections, are given below, in order to more closely define 

 the various species: 



1. SYMPHURUS LEEI Jordan and Bollman. 



Albatross station 2804, Panama (type). Teeth on the eyed side of 

 both jaws, in a shigle row anteriorly, extending more posteriorly in 

 the lower jaw; those on the blind side of both jaws in a broad band; 

 gill rakers well developed, 6 or 7, short, soft, and thick; a series of 

 short transparent cilia on the lower edge of the gill opening on the 

 blind side; a short triangular lappet of the black coat of the eye pro- 

 jecting from the interorbital side into the corneal space; lower jaw 

 wide, nearly as wide as length of snout. 



2. SYMPHURUS ELONGATUS (Giinther). 



Panama. Teeth as in S. leei; gill rakers somewhat smaller, but 

 present; no modification of the cornea. 



3. SYMPHURUS ATRICAUDUS (Jordan and Gilbert). 



Lower California, Albatross station 2830. Teeth as in S. leei; 

 gill rakers small; a very large Hap of tissue running down to center 

 of pupil, black with narrow white edges. No cirri on edge of gill open- 

 ings. 



4. SYMPHURUS PLAGUSIA (Bloch and Schneider) Jordan and Goss. 



Jamaica. On eyed side teeth are absent in lower jaw; present in 

 small numbers (4 or 5 anteriorly) iti the upper; broad bands on the 

 blind side; no cirri on edge of gill opening; gill rakers absent; no 

 corneal modification. 



5. SYMPHURUS FASCIOLARIS Gilbert, 



Type.— Albatross station 3022-3027, Pacific. Teeth as in S. 

 plagusia; no corneal modification; no cirri on edge of gill opening; gill 

 rakers unknown. 



6. SYMPHURUS ATRIMENTATUS Jordan and Bollman. 



Albatross station 3011, Gulf of California. Teeth in both jaws on 

 eyed side; corneal flap well developed, as m S. atricaudus; gill rakers 

 distinct; no cirri on edge of gill opcnmg. 



