1910.] NATURAL SCIENCES OF PHILADELPHIA. 333 



the present specimen, which agrees fully in this 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, XXXIY, 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-brown bar and the 

 elytra are slightly mottled with brown. 



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

 fathoms, green mud. 



Lepidonotus caeloris Moore. 



Lepidonotus ccehris Moore, Proc. Acad. Nat. Sci. Phila., 1903, pp. 412-414, 

 PI. XXIII, fig. 12. 



This species, originally discovered 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 explorations, 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, 

 duskjr and nearby black, the brighter colors being sometimes confined 

 to the papillae, sometimes overspreading the entire elytra. The 

 elytral tubercles show a distinct 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 have 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 

 papilla?. 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 Jolla, 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 

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



