o. 1937. CRIN0TD8 OF THE BERLIN MUSEUM— CLARK. 395 



No basal rays are visible; the radials are even with the edge of the 

 centrodorsal in the median line, slight]}^ visible as low triangles in 

 the interradial angles; the IBrj are slightly over three times as broad 

 as long, the lateral edges nearly straight, parallel, united in the 

 proximal half but separated in the distal half by a moderately broad 

 U-shaped gap; the IBrj are broadly pentagonal, twice as broad as 

 long; the division series are well rounded dorsally and well separated 

 laterally, the sides being perfectly smooth, with no trace of lateral 

 production. 



There are 20 arms 125 mm. long; all the IlBr series are present, 

 and all are 4(3+4). 



The lower pinnules are very long, but slender and perfectly smooth; 

 the arms are perfectly smooth dorsally. 



2. No locaHty; Cat. No. 5371. — One specimen. The cim are 

 XXXVI, 30, 24 mm. long; long and prominent dorsal spines are 

 developed from the eighteenth segment onward. 



There are 20 arms, all the IIBr series being present, and ail are 

 4(3+4). 



Pj is 9 mm. long, tapering rather rapidly in the first 4 segments 

 and becoming very slender and flagellate distally. F^ is about 13 mm, 

 long and resembles P3; P3 is 14 mm. long mth 21 segments of which 

 the first is twdce as broad as long, the following gi-adually increasing 

 in length and becoming about as long as broad on the fourth and 

 about twice as long as broad in the distal portion; the pinnule is 

 slender, tapering evenly to a delicate tip, and is perfectly smooth 

 with no trace of proximal carination or of a supplementary ridge such 

 as is seen on the large proximal pinnules in the majority of the species 

 of the genus; the segments fit closely end to end, without Siuy cut- 

 ting away of the corners; P4 is 6 mm. long \\'ith 12 segments, a little 

 less stout basally than P3, but tapering more rapidly; the outer 

 segments are tmce as long as broad; P5 is 5 mm. long, proportion- 

 ately smaller than P^, with slightly shorter segments. 



3. Red Sea; Hempricht and Ehrenberg; Cat. No. 1054. — Two 

 specimens, similar to those described; both have 20 arms, all the IIBr 

 series being present, all 4(3+4). 



4. Tor, Red Sea (Museum fiir Meereskunde) , — One specimen. 

 The chief characteristics of this species are the strongly rounded 



and well-separated rays and division series, which do not have 

 produced margins; the very long and slender, perfectly smooth and 

 evenly tapering P2 and P3; and the long spines on the outer cirrus 

 segments. The whole animal has a strikingly smooth appearance. 

 All the specimens have exactly 20 arms, all the IIBr series being 

 present, all 4(3+4). The color of all the specimens is dark brown. 



