Fishes of the Western North Atlantic 



557 



shape shown In Fig. 126; the lateral flanges are thin, each with 51—52 narrow trans- 

 verse ribs; the lateral extensions of the open opercular slit still have remnants of inter- 

 locking hooklets. The caudal pores are slit-like, about 125 on each side, opening on the 

 surface opposite the opercular slit. The caudal extension of the embryo case has a longi- 

 tudinal groove on the opercular surface. The membrane is thin, the opercular surface 

 of the anterior part of the embryo case with a few hairs. The embryo case is nearly black, 

 the flanges pale amber. "^ 



^///';y///f////^f//'lllt. 



>. 





Figure 126. Empty egg capsule, about 165 mm long, probably of Harrlotta raleighana, from Lat. 39°47' N, 

 Long. 7o°3i' W, 963 fathoms (U. S. Nat. Mus., No. 35603), viewed from side with opercular opening. 



Habits. Evidently this is strictly a deep water species, all the specimens recorded 

 having been trawled at depths ranging from 375 fathoms (686 m) for the empty egg 

 case down to 1,422 fathoms (2,603 "^)' The captures of a newborn specimen on June 

 20, 1949 and of another that was just born or torn from the egg capsule^" show that 

 its young are hatched in summer, though perhaps at other seasons also. Nothing else 

 is known of its habits. 



Range. Both sides of the North Atlantic; continental slope of mid-Atlantic and 

 North Atlantic United States and Nova Scotia in the west; near the Canaries (i speci- 

 men) and west of Scotland (2 specimens) in the east. 



Occurrence in the Western Atlantic. Only nine specimens have been taken in the 

 western Atlantic: one off Chesapeake Bay, three off New York and southern New Eng- 

 land, two on the southeastern slope of Georges Bank, two off southern Nova Scotia, 

 and one off Halifax, Nova Scotia. i^' Empty egg capsules, apparently of this species, have 



is the only known representative in the western North Atlantic of either of the chimaeroid families (Rhinochimae- 

 ridae, Callorhinchidae) that have egg capsules with broad lateral flanges with many transverse ridges. 



115. A similar egg capsule from off Halifax, Nova Scotia, has been described and pictured as Harrioita (.>) by Dean 

 (Publ. Carneg. Instn., 32, 1906: 36, fig. 19). 



116. Albatross Sta. 2210, August 21, 1884. 



117. Lat. 36°45' N, Long. 74°29' W; Lat. 39°i2' N, Long. jz°oi' W; Lat. 39°38' N, Long. 7i°i9' W; Lat. 39°45' N, 

 Long. 70°3i' W; Lat. 4i°25' N, Long. 65° 54' W; Lat. 42°39' N, Long. 64°04' W; Lat. 42^40' N, Long. 64°oo' W; 

 and Lat. 42°37' N, Long. 63^27' W. 



