562 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



lar ; both the terminal and lateral rostral tubercles are studded with 

 stronger spi miles. 



The interdorsal space is much shorter than the orbit. The second 

 dorsal spine is armed with 34 denticulations. 



The coloration in alcohol is mostly blackish-brown, but is much 

 lighter on the upper half of the trunk and head and black over 

 the coelom. The fins are all black, the ventral and anal black. The 

 buccal and branchial cavities are blackish, becoming abruptly light 

 around the inner margin of the upper jaw. The silvery peritoneum 

 is punctate with black and thinly coated with purplish brown. 



L. decimalis is sharply distinguished from its close ally, L. pumi- 

 liceps, in the number of ventral rays, 10 instead of 11 to 13, in the 

 even blunter head, and in certain proportions quite strikingly shown 

 by comparison of the tables of measurements we have prepared for 

 each species. In decimalis the following measurements are de- 

 cidedly shorter: the suborbital width, the distance between the 

 orbit and the preopercular margin, the length of the snout and of the 

 barbel, and the interdorsal space. 



Table of measurements in hundredths of length to anus. 



A Ibatross stat ion 



Total length in mm 



Length to anus in mm. 



Length of head 



Length of orbit 



Width of interorbital 



Width of suborbital 



Orbit to preopercle 



Length of snout 



Length of upper jaw 



Length of bar bel 



Depth of body 



Interdorsal space 



Length of pectoral 



Type. 



5348 

 i 155 

 38. 

 81 

 27 

 23 

 12 

 27 

 21 

 24 

 9 

 90 

 19 

 47 



Para- 

 type. 



5348 

 i 142 

 40 

 79 

 25 

 24 

 11. 

 27 

 22 

 22 



8o' 

 11 



1 Pscudocaudal developed. 



(decimalis, in reference to the number of ventral rays.) 



70. LIONURUS PARVirES (Smith and Radcliffe). 



Macrourus parvipes Smith and Radcliffe, Proc. U. S. Nat. Mus., vol. 43 



1912, p. 124, pi. 28, fig. 1. 

 Lionurus parvipes Gilbert and Hubbs, Proc. U. S. Nat. Mus., vol. 51, 1916, 



pp. 202, 205. 



List of stations. 



Albatross 

 station. 



5G08. 

 5609. 

 5636. 

 5670. 



Locality. 



Gulf of Tomini, Celebes . 

 do 



Pitt Passage 



Macassar Strait 



Depth in 



fathoms. 



10S9 

 1092 

 1262 

 11S1 



Bottom 



tempera- 

 ture. 



°F. 



36. 3 



36.3 



38.2 



Number 

 of speci- 

 mens. 



1 One of these specimens, Cat. No. 72941, U.S.N.M., is the type of Macrourus parvipes. 



