34 The Philippine Journal of Science 



Genus ANGUILLA Shaw 

 Anguilla Shaw, Gen. Zool. 4 (1804) 15. 

 Characters of the genus included above. 



Key to the Philippine species of Anguilla. 



L . Origin of dorsal much in advance of anus. 

 6 1 . A toothless groove divides the bands of teeth lengthwise 



upper and lower jaws _ A. 



b 3 . Bands of teeth in both jaws without a toothless groove. 



a*. Origin of dorsal not far in advance of anus. 



c\ Origin of dorsal above or slightly before anus; gape extending to 



hind border of eye or beyond A. australis. 



c 3 . Origin of dorsal above or behind anus; gape not reaching rear 

 margin of eye _ A. spengeli. 



Anguilla mauritiana Bennett. 



Anguilla mauritiana Bennett, Proc. Comm. Zool. Soc. London (1831) 

 128; Evermann and Seale, Bull. U. S. Bur. Fisheries 26 (1906) 

 (1907) 56; Jordan and Richardson, Bull. U. S. Bur. Fisheries 27 

 (1907) (1908) 237; Seale and Bean, Proc. U. S. Nat. Mus. 33 

 (1907) 239; Weber and Beaufort, Fishes Indo-Austr. Arch. 3 

 (1916) 245, figs. 100 and 102. 

 Mursena maculata Bleeker, Atlas Ichth. Mursen. 4 (1864) 9, pi. 1, 



fig. 2. 

 ? Mursena manillensis (?) Bleeker, Atlas Ichth. Muraen. 4 (1864) 10, 

 pi. 44, fig. 2. 

 Depth 12 to more than 17 in length (14 to 21 according to 

 Weber and Beaufort), head 6 to 7.3 (7 to 7.75, Weber and 

 Beaufort), and 1.6 to 2 in trunk; eyes rather small, 8.6 to 14 

 in head, 1.7 to 3 in interorbital space, and If to 3 in the broad, 

 blunt snout, the latter 4 to 5.4 in head ; breadth of snout at its 

 base usually greater than its length; the large mouth reaches 

 beyond posterior margin of eye (in one specimen to the pos- 

 terior border) and is 2.6 to 3.25 in head ; lips noticeably thick 

 and fleshy; length of head usually more than or may be equal 

 to distance from gill openings to origin of dorsal, which is always 

 well forward ; distance from origin of dorsal to anus equal to or 

 greater than distance from head to dorsal origin, and in small 

 specimens it may be nearly twice as much; pectorals with six- 

 teen to eighteen rays and 2.3 to 3.4 in head ; tail exceeds length 

 of head and trunk together by a distance varying from one-half 

 the length of head to one and one-third times head in small 

 specimens. 



Maxillary teeth form a broad band, longitudinally divided 

 by a toothless groove; intermaxillary and vomerine teeth form 



