226 PROCEEDINGIS OF THE NATIONAL MUSEUM. vol. 56. 



LEPTECHENEIS NAUCRATES (Linnaeus). 



Head, 5\; depth, 8^; laminae, 23; D. iv, 35; A. iii, 36; snout, 2^^ 

 in head from upper jaw tip; eye, 6J; maxillary, 3; interorbital, If; 

 pectoral, U in entire head length; ventral, 1|; disk, 4i in body; 

 rakers, 1 + 11. Dark brown band through eye equals eye width, then 

 expands to basal pectoral width, to become lighter along side to 

 caudal base. Length, 610 mm. 



Local New Jersey examples usually show 21 or 22 laminae and 

 rakers 3 + 10 to 14. 



BLENNIUS ATLANTICUS (Valenciennes). 



Head, 4^; depth, ^^, D. XI, 23; A. I, 23; head width, about 2 in 

 its length; snout, 2i; eye, 3|; maxillary, 2|; interorbital, 2 in eye. 

 Body well compressed, deepest about middle of pectoral. Caudal 

 peduncle well compressed, least depth 3 in head. Head short, deep, 

 steep front profile but little inclined from vertical. Eye high, within 

 bulge and close to upper profile. Mouth inferior, broad, lower jaw 

 shorter. Maxillary to eye center. Lips wide. Row of fine pectinate 

 teeth in each jaw, very numerous and uniform. Lower jaw only with 

 long slender canine each side. Interorbital shallowly convex. Rakers 

 30 and simple on outer side of first arch, 20 and many bifid or trifid 

 on inner side of first arch, longest barely \ of filaments, which about 

 half of eye. Supraorbital tentacle long as vertical eye-diameter and 

 front nasal tentacle little less. Small short tentacle each side of occi- 

 put. Dorsal slightly notched at soft dorsal origin, third spine about 

 1| in head, third ray If and last ray joined to front of caudal above. 

 Anal begins much nearer snout tip than caudal base, fourth ray If 

 in head and last ray free. Caudal with lower rays longest, roimded 

 behind, fin 1+i in head, pectoral l^, ventral If. Color in alcohol 

 brown, dusky to blackish, largely imiform, and belly slightly duller 

 brown. Iris whitish. Fins all blackish, except upper caudal edge 

 broadly whitish and edge of soft dorsal pale brown. Length, 100 mm. 

 Ascension Island or St. Helena. 



Apparently agrees with an example, 68 mm. long, from Colon, 

 Panama, thciugh it has D. XI, 20 and A. I, 21. Alticus macclurei 

 Silvester ^ from Porto Rico is the half-grown stage, not showing 

 any structural characters worthy of separation. 



ALTICUS TEXTILIS (Valenciennes). 



Heaa,3|-to4;depth4f to5J;D.XIorXII, 14 or 15; A. I, 15 or 16; 

 head width, 1^ to If in its length ; snout, 3 to 3i ; eye, 4| to 5 ; maxil- 

 lary, 2 to 2f; interorbital, 1* in eye. Body well compressed, deepest 



• Papers Marine 131ol. Carnegie Inst., Wash., vol. 12, 1918, p. 24, pl.'3, fig. 2. 



