722 PROCEEDINGS OF THE NATIONAL MUSEUM. vo,,. xxxir. 



color of body is really a livid grayish, closely marbled with creamy 

 white representing aggregations of rosettes. The ])rowMi bands more 

 or less spotted with whitish. Tentacles gi'ayish green to yellowish 

 gray. Polian yesicles large, about 30 in nmnber. Madreporic body 

 single, in dorsal mesei^tery. Length of alcoholic specimen, 250 mm. 



Loralitle.^. — Station 3t;T2, Auau channel ])etween Maui and Lanai 

 islands, 43 to 32 fathoms, j^ellow sand, pebbles, coral; Station 3S76, 

 same locality, 28 to 43 fathoms, sa^d and grayel; Ililo, Hawaii (H. W. 

 Henshaw, collector, Ace. No. 4182 .\ U.S.N.M.); 4 specimens. 



The calcareous ring is slightly difl'erent from the figure giyen hy 

 Semper. Thus the radial pieces have an anterior perforation Ijut the 

 posterior l)order is not so deepl^y notched, rather less so than the inter- 

 radial pieces, which are also a trifle loss excavated. The Polian vesi- 

 cles are somewhat unequal in length, the longest being 30 mm. The 

 long rachis of eitlier half of gonad gives oti' at intervals a slender 

 tubule three or four times dichotomously branched. Retractors well 

 developed. Madreporic body is elongated. 



The anchor plates, the exact form of which is best seen from the 

 figure (Plate LXXXI, fig. 3c), appear to be rather more regular than in 

 Samoan examples, judging from Semper's figures. The two larger 

 smooth holes of handle are sjanmetrically placed, the !'ather acute 

 anterior end of the odd half-serrate hole being between their hinder 

 ends. Usually there are three small perforations on edge of handle, 

 the central one being largest; rarely, however, there is but one, or the 

 three are subequal and less regular than in figure. Plates are about 

 0.27 mm. long. 1 find no peculiar awchors with triradiate shafts such 

 as Semper figures. The arms or flukes are occasionally bent ofl' their 

 plane. The stock or handle to shaft has six to eight minutely spiny 

 or rugose processes, and there are a few granuliform protul)erances at 

 the opposite end where the two arms join. Anchors are about 0.38 

 mm. long, Rosettes are about 0.021 to 0,027 nnu. in diameter. In 

 perisome surrounding mouth are many rosettes and numerous straight 

 or slightly curved rods thickened or branched, and minutely spiny at 

 tip. The surface of these rods, which are abundant also in digits of 

 tentacles, is thickly covered all over with minute granuliform spines 

 or asperities. Their length in the tentacles is 0.13 to 0.27 mm, and in 

 the oral disk 0.12 to 0,24 mm., usually nearer the former than latter 

 dimensions. (See Plate LXXXI, fig, 3/>.) These rods are notmentioned 

 by Semper, but they were probably overlooked in the ty-pe specimens. 

 Neither does Bedford speak of them. He found no malformations in 

 the deposits in his specimens from Rotuma,'^' 



Euapta (jodeif'royl has been recorded from Mauritius, Pelew, Thurs- 

 day, Fiji, Samoa, Caroline, and Rotuma. The Hawaiian records thus 

 materially extend its known range. 



«Proc. Zool. Soc, 1898, p. 847. 



