23, 2 Herre : Philippine Eels 201 



on tail, as is also the anal; five rows of stout teeth on inter- 

 maxillary plate, inner rows largest ; a double row on maxillaries, 

 inner row much the larger ; teeth on vomer not separated from 

 those of intermaxillary plate, oo 

 first three in a single row, then °0%o° a 

 five pairs, then four in a single o§q§§ oe 06 



row, extending well beyond °o£ 0° °§ q\ 



maxillary teeth; forward half of °.Pi g| o£ °°% 



mandibles with a double row, || \ °^°j, f/ °°\ 



the remainder with a single row |? IS % f I 



of teeth. !| I | 



Color in alcohol uniform I c s « 



brown, with paler throat and no. u. Bcfcidna ambtvodon Bicker, den- 

 belly; small spots of darker t ^^! l ' c in ^^TZ A ^^ b ' x*^ 

 brown scattered over the paler 



parts and faint indications of darker mailings elsewhere, espe- 

 cially posteriorly. 



Here described from an unlabeled specimen found in the 

 Bureau of Science collection, probably collected at Puerto Galera, 

 Mindoro. The dimensions are as* follows: Length, 114 milli- 

 meters ; depth, 10 ; head, 18 ; trunk, 42 ; tail, 54. 



An insignificant and rather uncommon little eel known from 

 the eastern Sunda Islands, Celebes, the Moluccas, Samoa, and 

 the Marquesas. 



Genus EVENCHELYS Jordan and Evermann 

 Evenchelys Jordan and Evermann, Proc. U. S. Nat. Mus. 25 (1903) 



327 - 

 Thyrsoidca Bleeker, Atlas Ichth. Muraen. 4 (1864) 110; Weber and 



Beaufort, Fishes Indo-Austr. Arch. 3 (1916) 354. 

 Excessively elongated, slender, and more or less compressed 

 eels, the tail from one and a half times to twice as long as head 

 and trunk; anterior nostrils in simple tubes, without barbels 

 or f oliaceous appendages ; posterior nostrils on top of head and 

 above forward margin of eye; mouth closing almost completely 

 and reaching far beyond eye, which is nearer tip of snout than 

 corner of mouth; dorsal, anal, and caudal confluent, covered 

 with skin; dorsal inserted in advance of the oblique gill slits 

 which are low down on sides; no pectorals; teeth more or less 

 compressed to needlelike, in two rows in upper jaw and forward 

 part of mandible; one row of small teeth on vomer; inter- 

 maxillary plate with a marginal row of small teeth and four 

 long depressible teeth in middle; lateral line conspicuous. 



