OPHIURANS OF UNITED STATES NATIONAL MUSEUM. 71 



Albatross', Port Castries, Santa Lucia. One specimen. 



Dry Tortugas, Florida. Seven specimens. 



The description which Lyman gave in 1869, as well as the scheme of the mouth 

 pieces published by him in 1875, is quite sufficient to make known this species 

 which belongs to Verrill's Amphiodia section, and is easily identified by the under 

 face of the disk being covered with scales which succeed those of the upper face, 

 and by the single tentacular scale. All my examples are in accordance with that 

 description, except that I do not always find the primary plates to be distinct, 

 even on small specimens. 



A. pulchetta has been met with on the coasts of Florida between 18 and 39 

 fathoms. H. L. Clark has noted it also at Porto Rico, while it has been taken 

 at Santa Lucia by the Albatross as well as at Dry Tortugas. 



I was greatly surprised to find this species in a tube bearing the label of station 

 2765, that is to say of a locality lying much farther south of the localities just 

 mentioned, but there can be no mistake as to the determination as the specimens 

 altogether agree with the others. If there has been no mistake in the labelling 

 A. pulchetta extends, consequently, from Florida in the northern hemisphere to 

 36 south latitude. 



AMPHIOPLUS (=AMPHIURA) ABDITA (Verrill). 



Amphiura abdita VERRILL, Amer. Journ. Sci., vol. 2, 1871, p. 132. 



Amphiwa abdita LYMAN (75), pi. 5, fig. 82. 



Amphiura abdita KOSHLER (07), p. 306, pi. 11, figs. 24-25. 



Amphiura macilenta VERRILL, Amer. Journ. Sci., vol. 23, 1882, pp. 142 and 408. 



Albatross station 2146. Apr. 2, 1884. Lat. 9 32' N.; long. 79 54' 30" W.; 

 34 fathoms; brk. sh. One small specimen. 



Albatross station 2242. Sept 26, 1884. Lat. 40 15' 30" N. ; long. 70 27' W. ; 

 58 fathoms; gn. m. ; temp. 51.4 F. Many specimens. 



Albatross station 2317. Jan. 15, 1885. Lat. 24 25' 45" N.; long. 81 46' 

 45" W.; 75 fathoms; co.; temp. 75 F. One specimen. 



Grampus, June, 1892. One specimen. 



West coast of Florida. One specimen. 



Key West, Florida. Four specimens. 



No Name Key, Florida. Several specimens. 



Cedar Keys, Florida. Three specimens. 



The specimen from station 2317, the diameter of the disk of which does not 

 reach 4 mm., is noticeable for its radial shields which are very small, rounded, or 

 triangular, with rounded angles, about as long as wide; otherwise as in abdita. 



Verrill considered it likely that A. macilenta, formerly described by him as a 

 distinct species, was the young of A. abdita. After having examined two speci- 

 mens determined by Verrill as A. macilenta, I agree with his conclusion. 



AMPHIOPLUS (-AMPHIURA) CUNEATA (Lyman). 



Amphiura cuneata LYMAN (82). 



Albatross station 2401. Mar. 14, 1885. Lat. 28 38' 30" N.; long. 85 52' 30" 

 W.; 142 fathoms; gn. m. brk. sh. One specimen. 

 6061 Bull. 8414 6 



