158 HAWAIIAN AND OTHER PACIFIC ECHIXI. 



Phormosoma bursarium A. Ag. 



Phormosoma bursarium A. Agassiz, 1881. "Challenger" Ech., p. 99; PI. Xb. 

 East Indies ; off Japan ; Hawaiian Islands ; 165-1050 fathoms. 



Plates 62, fig. 2; 63, fig. 3. 



This is the Pacific representative of placenta, and very near it in all 

 essential characters. The difference in tuberculation of the test abacti- 

 nally seems to be fairly constant, but certain specimens of the two forms 

 approach each other very nearly. The color of hursarium appears to be quite 

 uniformly yellow-brown, though the shade varies a great deal ; some speci- 

 mens are very dark, while others are bleached almost white ; one of the 

 latter is very decidedly pink on the actinal surface. This species was taken 

 by the "Albatross" at the following stations, the specimens ranging from 

 20 to 110 mm. in diameter : 



Station 3884. Between Maui and Molokai, Hawaiian Islands. Bott. 

 temp. 44°. 284-290 fathoms. Glob. m. 



Station 3892. Off north coast of Molokai, H. I. Bott. temp. 42.5°. 

 328-414 fathoms. Fne. gy. s. 



Station 3904. Off north coast of Molokai, H. I. Bott. temp. 43.9°. 

 295 fathoms. Br. m., s., r. 



Station 3957. Vicinity of Laysan Island, H. I. Bott. temp. 53.5°. 173- 

 220 fathoms. Fne. wh. s. 



Station 3988. Off Hanamaulu, Kauai, H. I. Bott. temp. 40°. 165-469 

 fathoms. Gy. for. s., p. 



Station 3994. Off Mokuaeae Islet, Kauai, H. I. Bott. temp. 42.9°. 

 330-382 fathoms. Fne. gy. s., for. 



Station 3997. Off Ukula Point, Kauai, H. I. Bott. temp. 41°. 418-429 

 fathoms. Fne. gy. s., br. m. 



Station 4019. Off Hanamaulu, Kauai, H. I. Bott. temp. 37.8°. 409- 

 550 fathoms. Gy. s., for., r. 



Station 4022. Off Hanamaulu, Kauai, H. I. Bott. temp. 41.° 374-399 

 fathoms. Co., s., for., r. 



Station 4025. Off Mokuaeae Point, Kauai, II. 1. Bott. temp. 44.9°. 

 275-368 fathoms. Fne. gy. s., brk. sh., for. 



Station 4087. Off Mokuhooniki Islet. Pailolo Channel, H. I. Bott. temp. 

 43.6°. 306-308 fathoms. Fne. gy. s. 



