16 



BULLETIN 104, UXITED STATES XATIOXAL MUSEUM. 



longitude 27° 31' W., in 2,200 fathoms (4,023 meters). Besides 

 these it is recorded by Brady from the Faroe Channel in 540 fathoms 

 (988 meters). Flint recorded it from two stations, one of which, 

 D2338, latitude 23° 10' N.; longitude 82° 20' W., depth 189 fathoms 

 (346 meters) in the Gulf of Mexico west of Cuba I have had no mate- 

 rial from but have from a near-by station. The Scotia obtained it 

 at station 420, latitude 69° 33'' S.; longitude 15° 19' W., 2,620 

 fathoms (4,791 meters) in the Antarctic recorded by Pearcey. 



In the Albatross material, I have had the species from 19 stations, 

 ranging in depth from 167-2,369 fathoms (305-4,332 meters) and 

 bottom temperatures 36.8°-40.1° F. (2.6-4.4° C), w^ith one station 

 45° F. (7.2° C.) These are mostly from the region south of Georges 

 Banks and westward but a few continue down the coast and tlii-ee are 

 in the Gulf of Mexico. 



Nearly all of the specimens here included are typical. 



This seems to be a primitive species in its lack of fixity of character, 

 the line of direction of attachment of the chambers being often very 

 irregular and the shap^e of the chambers not uniform or regular. As 

 many as eight chambers are present Jn some of the specimens but the 

 average is much less. The weakness of the connection of the cham- 

 bers seems to be the main reason for the small number and the irregu- 

 larity of the line making the test more easily broken. Chambers are 

 either pyrif orm or subglobular but are very often somewhat compressd 

 and the connections are not as a rule exactly median but more often 

 in an excentric position. The size of the chambers varies but slightly 

 in most cases. The three figures in the middle of the five of Flint 

 are very typical. 



Reophax aduncus- — material examined. 



