122 Bulletin, Vanderlilt Marine Museum, Vol. IV 



well separated from each other; beyond the eighth plate the under 

 arm-plates noticeably narrow and the outer margin of each becomes 

 slightly convex. The side arm-plates are wide and extend upon both 

 the ventral and dorsal surfaces. On the proximal part of the arm 

 there are three to four tentacle scales on each side, and farther out 

 on the arm, two and distally, only one tentacle scale. There are three 

 stout, conical arm-spines present. The lower one is the shortest, 

 scarcely exceeding the length of the adjacent tentacle scale ; the 

 median spine is the largest, about as long as the supporting arm-plate ; 

 the third spine is nearly as long as the second; all three are equally 

 well separated. The first dorsal arm-plate is triangular, small; the 

 second, third and fourth plates are also small, squarish or rectangu- 

 lar; the remaining proximal dorsal arm-plates are much wider than 

 long, four to five times as wide as long, with the inner and outer 

 margins nearly straight, the lateral margins dovetailing with those 

 of the side arm-plates; farther out on the arm, the outer margin of 

 each dorsal plate is rounded. 

 References : Ophiura texturata Lamarck, Anim. sans Vert., 2nd ed., 



vol. Ill, p. 221, 1840, (with early synonymy). — Lutken, Kongl. 



Danske Videnskab. Skrifter, 5th Raekke, Bd. 5, part 1, p. 36, 



pi. 1, figs, la-e, 1861. — Mortensen, Th., Handb. Brit. Echinod., 



p. 236, fig. 128, parts 3, 4, 1927. 

 Asterias ciliaris Linne, ed. 12, p. 1101, 1767. 



Asterias ciliata Retzius (Retzius not available in American libraries). 

 Asterias ophiura Linne, ed. 10, p. 662, 1758. 

 Asterias lacertosa Pennant, Brit. Zool., vol. IV, p. 130, tab. 34, fig. 1, 



1812. 

 Ophiura ophiura H. L. Clark, Mem. Mus. Comp. Zool., vol. XXV, 



p. 323, 1915. 



Genus : OPHIOLEPIS Muller and Troschel. 

 OpMolepis elegans Lutken. 



Plates 74, 75A and 76A. 



Type : Taken at St. Thomas, Danish West Indies, and deposited in 

 the Copenhagen Museum. 



Distribution: Charleston, S. C; Florida, Cuba, Mexico, Jamaica. 

 Depth: 2 to 30 fms. 



Material examined: One specimen, taken in Porto Padre, Cuba, 

 March, 1928, by the (< Ara" (Plates 74, 75A and 76A). Cat. no. 215. 



