354 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 5 



170-34. East of Wreck Bay, Chatham Island, 32 fms, Jan. 21, 1934, 

 2 males (1 illustrated), 2 females (USNM No. 69185), 5 males 

 (AHF no. 34029). 

 177-34. Sulivan Bay, James Island, 5-20 fms, Jan. 23, 1934, 1 young 



(AHF no. 34030). 

 185-34. Cartago Bay, Albemarle Island, 32 fms, Jan. 25, 1934, 3 

 males, 3 females (USNM No. 69187), 8 females (1 illustrated in 

 part) (AHF no. 34031). 

 187-34. Cartago Bay, Albemarle Island, 8-10 fms, Jan. 25, 1934, 3 



females (AHF no. 34032). 

 190-34. Lat. 0° 55' S, Long. 90° 30' W, 58-60 fms, Jan. 26, 1934, 1 



male (AHF no. 34033). 

 201-34. Ofif Gardner Bay, Hood Island, 25-35 fms, Jan. 31, 1934, 



1 male, 3 females (AHF no. 34034). 

 323-35. Tagus Cove, Albemarle Island, 15 fms, Dec. 10, 1934, 1 fe- 

 male (AHF no. 35012). 



Measurements. — Male: length 4.5 mm, width 5.0 mm; female: 

 length 2.7 mm, width 3.3 mm. 



Habitat. — Sand and rock, sand and coral, sand and nullipore; mud; 

 coral, nullipore, and calcareous worm tubes. 

 Depth. — 8-150 fms. 



Remarks. — The range as given by Rathbun (1937), "Mexico to the 

 Galapagos Islands," is very misleading, as it implies continuous distribu- 

 tion along the mainland shore. Actually, the only Mexican record is one 

 of Velero III from Clarion Island, 600 miles off the Mexican coast. 

 Obviously, we have here either a true Galapagos endemic species which 

 has extended its range to Clarion Island, or a Clarion Island endemic 

 species which has migrated to the Galapagos Islands. A parallel distribu- 

 tion is that of Leptodius cooksoni Miers. In neither case has the species 

 established itself on continental shores. 



No new records of the species were obtained on the Allan Hancock 

 Expedition of 1938. 



Y^mWYLEUCOSIIDAE 



Subfamily EbALIINAE 



Genus EBALIA Leach, 1817 



Ebalia hancocki Rathbun 



Plate 51, Figs. 1-6 



Ebalia hancocki Rathbun, Proc. Biol. Soc. Washington, vol. 46, p. 183, 

 1933; Bull. 166, U.S. Nat. Mus., p. 128, pi. 36, figs. 6-8; pi. 82, 

 figs. 1 and 2, 1937. 



