OPHIUKANS OF UNITED STATES NATIONAL MUSEUM. 39 



HEMIPHOLIS ELONGATA (Say). 



Ophiura elongata Say, .Tourn. Acad. Nat. Sci. Phila., vol. 5, 1S25, p. 14G. 



Ophiolepis elongata Muller and Teo.schel (42\ p. 95. 



OpMolepis elongata Stimpson (52), p. 225. 



Ophiolepis uncinala Ayres (52~), p. 250. 



Amphiura elongata I,iJTKEN (59), p. 115, pi. 3, fig. 1. 



Ilemipholis eordi/cra Lyman (65), p. 137, pi. 1, figB. 1-3. 



Uemipholis cordifera Ljungman (66>, p. 322. 



Ilemipholis cordifera Lyman (82), p. 158. 



Ilemipholis elongata Ives (89), p. 177. 



Ilemipholis cordifera Kcehler (07), p. 298. 



One mile inside May Eiver, South Carolina. One specimen. 



St. Augustine, Florida. Some dry specimens. 



Trinidad. Two specimens. 



Rio Janeii'o. Three specimens. 



I have designateil this species by the name of H. elongata instead of H. cordifera, 

 under which it is usually kixown, especially since the publication of Lyman's work, 

 first because the name elongata had been applied to it by Say in 1825, and again 

 because the term "cordifera" has produced some confusion, which I think is due 

 chiefly to Lyman and has never yet been pointed out. In fact, Lyman, who, in 

 1865, gave an excellent description of the species with which we are dealing, thought 

 that it was the same as had been called by Bosc, in 1 830, Asterias cordifera. Now, the 

 latter is an Amphiura of the Amphiodia section, in which the under face of the disk 

 is provided with scales; Liitkcn gave that synonymy in 1859, when he published 

 a good description and some figures of the said Amphiodia which he called Amphiura 

 cordifera (Bosc) in his "Additamenta " (59, p. 115); also in 1860,' when he called it 

 Amphiura riisei. In 1859, in the same volume of the "Additamenta," he pub- 

 lished also a good description and some drawings of Araphiura elongata (Say). 

 The two species described by Liitken were perfect^ distinct, and the descriptions, 

 as well as the figures published by liim, were excellent. There would have been, con- 

 sequently, no difficulty due to synonymy concerning Ilemipholis elongata had not 

 Lyman, in 1865, adopting the generic name of Ilemipholis suggested by Agassiz, 

 described Amphiura elongata under the name of H. cordifera, thus considering tliia 

 form to be synonymous with Asterias cordifera Bosc. Later, in 1882, he published 

 in the Reports of the CliaUenger (82, p. 158) a synonymic Ust for his Ilemipholis 

 cordifera wliich contained the same error's. One can hardly account for Lyman's 

 considering as synonymous two forms so clearly distinct as those which Liitken 

 had so well described and figured under the names of Amphiura elongata and A. 

 cordifera,. 



Consequently, for the Ilemipholis distinguished by Say in 1825 the name of 

 elongata, wliich he had applied to it, must be kept. 



' Proc. Boston Soc. Nat. Hist., vol. 7, p. 258. 

 6061°— Btill. 84—14 4 



