160 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



10° 10' 35" N., long. 124° 03' 15" E.) ; 77 meters (42 fathoms) ; 

 March 24, 1909. 



Four specimens (Cat. No. 41279, U.S.N.M.). 



Albatross station 5475 ; San Bernardino Light bearing S. 27° W., 

 20.38 kilometers (11 miles) distant (lat. 12° 56' 26" N., long. 124° 

 24' 12" E.) ; 357 meters (195 fathoms). 



One specimen (Cat. No. 41276, U.S.N.M.). 



Notes. — Amphiura grandisquama has not been found heretofore 

 except in the Atlantic Ocean, and its presence in the Pacific Ocean is 

 rather unexpected. There can not be the least doubt, however, re- 

 garding the determination of the specimens, which I have compared 

 with others from the Atlantic, both from the east and from the west 

 coasts. I give here photographs of two specimens from station 5348. 



The geographical range of A. grandisquama is therefore very 

 great, and the depth at which it is found likewise varies between very 

 broad limits. The Albatross met with it between 247 and 440 

 fathoms, and the West Indian collection of the United States Na- 

 tional Museum, which I have recently studied, contains specimens 

 collected in the Carribean Sea at depths between 10 and 240 fathoms ; 

 The Princesse-Alice dredged A. grandisquama in the North Atlantic 

 between 552 and 1,850 meters (301 to 1,017 fathoms). 



AMPHIURA UNCINATA Kcehler. 



Plate 65, figs. 6-8 ; plate 96, fig. 4. 



Amphiura uncinata Kcehler ('04), p. 76, pi. 14, figs. 3, 4. — H. L. Claek 

 ('15), p. 235. 



Locality. — Albatross station 5123; east coast of Mindoro; Mala- 

 brigo Light bearing N. 44° W., 60.23 kilometers (32.5 miles) distant 

 (lat. 13° 12' 45" N., long. 121° 38' 45" E.) ; 518 meters (283 fath- 

 oms) ; February 2, 1908 ; gn. M. 



One specimen (Cat. No. 41144, U.S.N.M.). 



Notes. — I originally described this species from several specimens 

 collected by the Siboga in the Sunda Archipelago at depths between 

 250 and 330 meters (135 to 180 fathoms). These specimens were not 

 in a good state of preservation. 



The single specimen collected by the Albatross is in excellent con- 

 dition, and the arms are preserved for a large portion of their length, 

 which exceeds 100 mm. ; the diameter of the disk is 11 mm. I include 

 two' photographs of the dorsal and ventral surfaces, as well as of a 

 portion of an arm at the base, in order to show the characteristic 

 hook which terminates the central spines on the first arm segments ; 

 it is represented more enlarged in figure 4, plate 96. 



