162 BULLETIN 150, UNITED STATES NATIONAL MUSEUM 



KEY TO SPECIES OF PARAUPARIS " 



A'. Teeth trilobed; gill slit in front of 4 pectoral rays; coeca 13-18; pectoral 



rays 30 or more dactylosus. 



A^. Teeth simple. 



B'. Pectoral with more than 30 rays; pectoral notch very shallow .angustifrons. 

 B^. Pectoral with less than 30 rays. 

 C. Teeth in bands. 

 D*. Teeth conical. 

 E'. Mouth horizontal. 



F'. Middle pectoral rays not rudimentary, distinctly forming part of 

 the fin outline; pores on the he^d not enlarged. 

 G'. Pectoral normal. 



H'. Pectoral rays evenly spaced on the girdle; little shorter 



than lower rays fimbriatus. 



H2. Middle pectoral rays widel}' spaced. 



J'. Gill slit extending down in front of the pectoral? 



K'. Pacific; dorsal 56; anal 46; gill slit in front of 10 



pectoral rays deani. 



K2. Pacific; dorsal 63; anal 56; gill slit? entochloris. 



K^. Atlantic; dorsal 59; anal 51; pectoral 20; gill slit prob- 

 ably above the pectoral bathybius^*. 



J 2. Gill slit above the pectoral fin. 

 L'. Atlantic. 



M'. Color pale liparina. 



M2. Color black bathybius. 



JJ. Pacific. 



N'. Pectoral 25; the upper edge on a level with the 

 upper margin of the eye; color black, includ- 

 ing mouth and gill cavity ulochir. 



N^. Pectoral 20; the upper edge on a level with the 

 pupil; color pale, including mouth and gill 



cavity; gill slit unknown entochloris. 



N'. Pectoral 17; the upper edge on a level with 

 the pupil; color pale; mouth and gill cavitv 



black melanobranchus.'* 



G^. Pectoral delicate, fringed membranaceous.'" 



F^. Middle pectoral rays rudimentary, short or absent. 



O'. Color black; rudimentary median pectoral 

 raj's present; rays 23. 



P'. Stomach pale latifrons. 



P2. Stomach black holomelas. 



O^. Color black; pectoral rays 15-19?; no rudi- 

 mentary rays? bathybius.'" 



0^. Color pale; pectoral 17; no rudimentary rays 



between the two lobes australis. 



E^. Mouth at an angle. 



Q'. Atlantic; depth 4.6; snout to vent 6; pec- 

 toral 21 ; the upper edge of the fin above the 

 angle of the mouth; the middle rays rudi- 

 mentary; the symphysis behind the front of 

 the eye; stomach pale; caudal S.garmani. 



" See appendix for additional species. 

 '• In key in more than one place. 



