1910.] ^ NATURAL SCIENCES OF PHILADELPHIA. 833 



the present specimen, which agrees fully in thLs respect with the type 

 of P. semierma. If v. Marenzeller's example, however, lacks the seven 

 segments (XX-XXVI) and the three pairs of elytra borne on XXI, 

 XXIII and XXVI the elytra on the posterior piece would fall on 

 somites XXIX, XXXII, XXXIV, XXXVII, etc. and the agreement 

 would be complete. 



This specimen is well colored, each segment being marked on the 

 dorsum with a rather bold, transverse dull purplish-l)rown bar and the 

 elytra are slightly mottled \\ith brown. 



Station 4,339, off Point Loma Light, vicinity of San Diego, 241-369 

 fathoms, green mud. ,^ j 



1 Lepidonotus oaeloris Moore. 



Lepiilonotux ccviofis Moore, Proc. .\cad. Nat. Sci. Phila., 1903, pp. 412-414, 

 PI. XXIII, fig. 12. 



This species, originally disco\'ered off Japan and later found to be 

 widely and plentifully distributed from Vancouver to the Kadiak 

 Islands, is now determined to be equally common in the region covered 

 by these e.xplo rat ions, from which it was previously known through 

 a single small example dredged at Monterey Bay. The bathymetrical 

 range shown by these explorations is from 26 to 1,400 fathoms. 



These specimens range in size from 8 to 35 mm. and present all of 

 the color varieties of yellow, orange, reddish, olive brown, dark brown, 

 dusky and nearly black, the brighter colors being sometimes confined 

 to the papilke, sometimes overspreading the entire el}i:ra. The 

 elytral tubercles show a disthict tendency to become larger than on 

 northern examples and at the same time lower, flatter and smoother, 

 especially on middle scales. At the ends of the body they are fre- 

 quently conical. 



Several specimens liave the proboscis extended. On one 25 mm. 

 long it is 5.3 mm. long and 3 mm. wide, cylindroid, somewhat depressed 

 at distal end and bearing the usual nine dorsal and nine ventral blunt 

 papillse. Jaws deep brown; the fangs rather stout and blunt, cutting 

 edge rather long, knife-like. 



Stations 4,310, Point Loma Light, San Diego, 71-75 fathoms, green 

 mud and sand; 4,326, off Point La JoUa, vicinity of San Diego, 243- 

 280 fathoms, soft green mud; 4,411, off Long Point, Santa Catalina 

 Island, 143-245 fathoms, gray sand and shells ; 4,417, off Santa Barbara 

 Island, 29 fathoms, fine yellow sand and coralline rock; 4,420. off 

 San Nicolas Island 32-33 fathoms, fine gray sand ; 4,421, same locality, 

 229-291 fathoms, gray mud and rocks; 4,423, same locality, 216-339 

 fatiioms, gray sand, black pebbles and shells; 4,427, off Santa Cruz 



