230 



BULLETIN" 100, UNITED STATES NATIONAL MUSEUM. 



CRISTELLAKIA TRICARINELLA Reuss. 



Plate 50, figa. 3a, b. 



Cristellaria tricarinella Reuss, Sitz. Akad. Wiss. Wien, vol, 46, 1862, p. 68, pi. 7, 

 fig. 9; pi. 12, figs. 2-5. — H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 

 1884, p. 540, pi. 68, figs. 3, 4.— Cushman, Bull. 71, U. S. Nat. Mus., pt. 3, 1913, 

 p. 72, pi. 34, figs. 1, 2. 



Brady records this species from three Cltallenger stations in the 

 western Pacific of which one is off the Pliilippines in 95 fathoms (174 

 meters). It has occurred at the following stations in the Albatross 

 Philippine dredgings: D5201, in 554 fathoms (1,012 meters), Sogod 

 Bay, southern Leyte, bottom temperature, 52.8° F. (11.5° C); 

 D5211, in 155 fathoms (283 meters), east of Masbate Island, bottom 

 temperatm-e, 56.6° F. (13.7° C); D5268, in 170 fathoms (311 meters), 

 off Batangas Bay; D5318, in 340 fathoms (622 meters), China Sea 

 off Formosa; D5592, in 305 fathoms (558 meters), off Sibuko Bay, 

 Borneo, bottom temperature, 43.3° F. (6.1° C). 



This does not in all respects, especially those of the early develop- 

 ment, agree very closely with the species of Keuss, and its limited 

 area of distribution in the Indo-Pacific seems to indicate that it may 

 be a distinct species. 



The records outside the Philippine region include the Challenger 

 records; off Raine Island, Torres Strait, 155 fathoms (283 meters), 

 and off the west coast of New Zealand, 150 fathoms (270 meters) 

 (Brady); off Great Barrier Island, New Zealand, 110 fathoms (200 

 meters); north of Enderby Island, New Zealand, 85 fathoms (153 

 meters); 40 miles south of Cape Wiles, South Australia (Chapman); 

 from off Mauritius; off the west coast of Australia (Egger); and from 

 off Ceylon (Dakin). 



Cristellaria tricarinella — Material examined. 



CRISTELLARIA TRICARINELLA Reuss, var. SPINIPES Cushman. 



Oristellaria tricarinella Reuss, var. spinipes Cushman, Bull. 71, U. S. Nat. Mus., 

 pt. 3, 1913, p. 72, pi. 33, fig. 2. 



Tliis variety was represented at three of the Albatross stations as 

 follows: D5178, in 78 fathoms (143 meters), off' Romblon; D5301, in 

 208 fathoms (381 meters), China Sea off Hongkong, bottom tempera- 



