NO. 2133. FISHEti TAKEN BY "ALBATROSS;' 18S8— THOMPSON. 



441 



Table of measurements ' and counts of Notoihenia sima Richardson, from Laredo Bay, 



Straits of Magellan. 



Author's number 



Length to base of caudal mm. 



Body depth " 



Maxillary length 



Interorbital width 



Dorsal spines 



Gill rakers 



Scales between dorsal and occiput 



02-5 



70 



0.20 



.11 



.045 



VI 



9+11 



16 



1 Measurements in hundredlhs of the length to base of caudal. 



7. NOTOTHENIA SQUAMICEPS Peters. 



Plate 3, fig. 2. 



Notothenia squamiceps Peters Monatsber. Akad. Wiss. Berlin, Dec. 1876, p. 837. 

 Punta Arenas (Straits of Magellan), in 1 or 2 fathoms. 



Description of 10 specimens from Mayne Harbor, Patagonia, and 

 Port Churruca, in the Straits of ]\Iagellan; the longest specimen, 

 67 mm. in total length, was used as typical. 



Head 3^ (0.29 to 0.31) in total length to end of muscular part of tail; 

 depth 3| (0.22 to 0.26); eye 4^ in head (0.07 to 0.08 of body); snout 

 3* (0.075 to 0.085); length of maxillary 2f (0.09 to 0.10); of mandible 

 2f (0.11 to 0.125); width of interorbital space 41 (0.06 to 0.075); 

 length of pectoral 1 ^ in head (0.23 to 0.26) ; of ventral 1^ (0.23 to 0.24) ; 

 length of combined dorsal bases If in body without caudal; of anal 2; 

 least depth of caudal peduncle 3^ in head (0.09 to 0.10) ; D. VI (VI or 

 VII), 26 (26 to 29) ; A. 29 (28 to 30) ; pectoral rays 22 ; scales with pores 

 in upper lateral Ime 35 (31 to 38); in lower 6 (or 7); scales in longi- 

 tudinal series 48 (46 to 49) ; in transverse from origin of anal obliquely 

 forward and upward 4+12 (14 to 17); in series from occipital line of 

 head to insertion of dorsal 9 (8 to 12); gill rakers 8+15 (7 or 8 + 13 

 to 16). 



Head compressed, its depth at line of occiput one-third gi-eater 

 than its width at same point; without cottoid appearance of species 

 allied to Notothenia longipes; body compressed, its width at base of 

 pectorals nearly twice (If) in its depth; interorbital space broad and 

 somewhat arched; jaws nearly equal; upper limb of preopercle nearly 

 vertical; interopercle in part completely overlapped; width of velar 

 flap from tip of lower jaw equal to half diameter of eye; upper surface 

 of eyeball but little exposed, eye looking nearly laterally; teeth in 

 tliree rows anteriorly, a single one posteriorly; gill rakers not as long 

 as pupil is wide. 



Dorsal insertion above pectoral base; interdorsal space as wide as 

 one or two spaces between spines; last dorsal ray above fourth or 

 fifth from last of anal, and distant from end of muscular part of tail 

 by IJ least depth of caudal peduncle; pectorals rounded, ventrals 

 extending much beyond anus; caudal broken in all specimens, 

 probably rounded. 



