4 PROCEEDINGS OF THE NATIONAL. MUSEUM vol.80 



Coloration largely blackish brown, with imperfect, variable, whitish 

 reticulating lines, most distinct over under surfaces. The pattern 

 of coloration somewhat approaches Gymnothorax hilonis Jordan 

 and Evermann, and again it also suggests that of Lycodontis undu- 

 lata (Lacepede). 



Family SYNODONTIDAE 



SYNODUS JAPONICUS (Houttnyn) 



Five, 55 to 60 mm., from Black Beach Anchorage, Charles Island, 

 Galapagos, June 27. 



In the academy, five from the surface of Gardner Bay, Hood 

 Island, June 30, and one from Charles Island, June 27, all in Gala- 

 pagos Group. Former 23 to 60 mm., latter 59 mm. All are scale- 

 less, with 10 dark saddles on back, the last at caudal base. 



Fourteen, 28 to 40 mm., in the National Museum, from Nukuhiva, 

 Marquesas Islands, September 25. 



Family MYCTOPHIDAE 



DIAPHUS AGASSIZII Gilbert 



In the academy, 86 examples, 60 to 74 mm., from Taiohae, Nuku- 

 hiva, Marquesas Islands. Obtained by light over side of boat at 

 night, September 26. 



In the National Museum, 72 examples, 57 to 72 mm., September 

 29, also from Taiohae. 



BENTHOSEMA PINCHOTI, new species 

 FiGTJKE 1 



Description.— Depth. 3% ; head 2%, width 21/5. Snout 71/5 in head 

 measured from snout tip; eye 24^, greatly exceeds snout or inter- 

 orbital ; maxillary reaches little beyond eye, terminal expansion one- 

 third of eye, well sheathed above by cheek, length 1% in head from 

 snout tip ; teeth in jaws minutely villif orm, in narrow bands, visible 

 with closed jaws ; mandible but slightly protrudes ; interorbital 4l^ in 

 head from snout tip, nearly level. Gill rakers about 6+21, slender, 

 lanceolate, 1% in eye or twice gill filaments. 



Anteorbital luminous organ veiled, though about one-half pupil; 

 mandibular photophores veiled, 3 on each mandibular ramus, 2 

 operculars close behind lower opercular edge and upper double; 

 pectorals 5, first veiled by gill covers; 2 subpectoral, anterior 

 veiled by gill cover and upper at lower pectoral fin base ; supra pec- 

 toral high, at inception of lateral line; upper postpectoral slightly 

 above level of pectoral origin though close below lateral line ; front 

 supraventral below upper subpectoral, postero-supraventral higher, 

 level with first supraanal; 3 ventrals; 6 anteroanals, then 4 postero- 



