252 RECENT OPHIURANS. 



677. A. ANDREAE (Lutken). 



Amphipholis andreae Lutken, 1872. Ov. Kongl. Danske vid. sels. Forh., p. 106, pi. 1, f. la-c. 



1 specimen. "Rade d'Alepy" (AUeppi, southwestern India?). 



678. A. ASTERICTUS, sp. nov. (do-TijpiKT-os, not firmly fixed, uncertain). Plate 7, f. 9-11. 



Disk 8 mm. in diameter; arms about 90 mm. long. Disk flat covered with 

 a coat of rather coarse scales among which the primary plates are plainly visible; 

 radial plates separated from central by a single row of scales; about 16-18 series 

 between central plate and margin of disk and about 14-16 between the radial 

 shields, across an interradius. Radial shields very long and narrow, 2 mm. long 

 by .5 mm. wide, only slightly divergent and separated their entire length by a 

 narrow series of scales. Upper arm-plates quadrilateral but distal margin 

 much longer than proximal, and distal corners rounded; broadly in contact 

 throughout. Interbrachial spaces below covered with a close coat of fine scaling. 

 Oral shields pentagonal longer than wide, the two proximal sides longer than the 

 distal. Adoral plates rather large, meeting within. Oral papillae four on a 

 side, in a close series; subdental papillae thick and block-like; of the other three, 

 the distalmost is largest and nearly equals the first under arm-plate. Succeeding 

 under arm-plates squarish, pentagonal or even somewhat hexagonal, a trifle 

 longer than wide, more or less in contact. Side arm-plates small, not meeting 

 either above or below; each carries 3 slender, subequal, bluntly pointed arm- 

 spines, as long as a joint and a half. Tentacle-scales 2, rather small. Color 

 (dried from alcohol), very pale brownish, the disk more gray. 



HoLOTYPE (M. C. Z. 1486). Japan: Bay "of Yeddo. E.S.Morse 

 collection. 



Mr. Lyman had laid this specimen aside with some sketches of structural 

 details, and only the label " Amphiura." I am unable to find any species in the 

 present genus with which it agrees well but as its various characters are so 

 indistinctive, I am not at all sure it has never been described (hence the name). 

 It is apparently very near causata Koehler from Borneo Bank, but that species, 

 although much smaller, has 4 arm-spines on the basal arm joints. There are 

 other slight differences but none of so great importance as this, and a good series 

 of specimens may show the identity of the two species. 



679. A. CONGENSIS (Studer). Plate 8, f. 10-12. 



Amphiura congensis Studer, 1882. Abh. K.-Preus. akad. wiss. Berlin, p. 19. 



1 coTYPE. Off the mouth of the Congo River. 



