NO. IO CRINOIDS OF HAMBURG MUSEUM — CLARK 21 



more slender than usual, with thirteen segments; P., is 12 mm. long 

 with eleven segments and resembles P 2 ; P 4 is 9 mm. long with 

 eleven segments, resembling P 3 but much more slender. 



STEPHANOMETRA MONACANTHA (Hartlaub) 



Antedon monacantha 1890. Hartlaub, Nachr. Ges. Gottingen, Mai, 1890, p. 



179 (0- — 1891. Nova Acta Acad. German., vol. 58, No. 1, p. 59, pi. 3. 



figs. 33, 38 (1). 

 Antedon militaris Hartlaub, MS. (1). 



I. Mortlock Island, Carolines. — One specimen. 

 The specimen recorded by Hartlaub from Torres Strait appears to 

 be nearer S. indica than a\ monacantha. 



Family PONTIOMETRIDJE 

 PONTIOMETRA ANDERSONI (P. H. Carpenter) 



Antedon andersoni 1891. Hartlaub, Nova Acta Acad. German., vol. 58, 

 No. 1, p. 78, pi. 3, fig. 36 (1). 



1. Peleiv Islands.- — One medium sized specimen. 



2. Ccbu, Philippines. — One medium sized specimen. 



3. Snlu (Jolo). — Arm fragments. 



Family MARIAMETRID^E 

 OXYMETRA ERINACEA (Hartlaub) 



A 11 ted 011 erinacea 1S90. Hartlaub, Nachr. Ges. Gottingen, Mai, 1800, p. 

 177 (0- — 1S91. Nova Acta Acad. German., vol. 58, No. 1, p. 52, pi. 3, 

 fig. 29 ( 1 ) . 



I. Ccbu, Philippines; Capt. Ringe. — The centrodorsal is large and 

 hemispherical as in Sclcnemctra ftnschii, almost entirely covered by 

 by cirrus sockets ; the dorsal pole is very small, irregular in shape, 

 slightly concave. 



The cirri number XXX-XXXV. The proximal cirrus segments are 

 about as long as broad, after the middle of the cirrus gradually 

 decreasing in length so that those in the outer portion are twice as 

 broad as long ; the shorter segments in the distal half have the distal 

 dorsal edge thickened and everted and very finely spinous, this ever- 

 sion gradually becoming more and more triangular in end view, the 

 spinosity concurrently becoming gradually restricted to the lateral 

 part of the eversion, and on the terminal segments becoming a single 

 smooth sharp spine. 



The fifty-one arms are 115 mm. long; their arrangement on the 

 rays is in 3, 2; 2, 3 order so that the normal number of arms 



