14 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 60 



2, only one being 4(3+4) ; the cirri have 26-29 segments ; a fifth has 

 eighteen arms 85 mm. long; the eight IIBr series are 4(3 + 4) ; one 

 ray has both the IIBr series missing; the cirri have 27 or 28 segments ; 

 one has the distal half regenerated ; the sixth has twenty-one arms 

 80 mm. long ; one of the IIBr series is 2, the other nine, and the single 

 IIIBr series, being 4(3 + 4) ; the cirri have 26-30 segments of which 

 the longest are nearly as long as broad. 



AMPHIMETRA SCHLEGELII (A. H. Clark) 



i. No Locality; C. Eberstein. — One specimen, which may be de- 

 scribed as follows : 



The cirri are XV, 29-35, 20 mm. to 23 mm. long; the longer proxi- 

 mal segments are about as long as, or slightly longer than, broad ; 

 the distal segments are nearly twice as broad as their median length ; 

 the twelfth, thirteenth or fourteenth and following bear a long and 

 prominent, rather broad, dorsal spine ; the segments which bear the 

 dorsal spines have the dorsal surface flattened so that there is a 

 rather conspicuous rounded ridge along the boundary between the 

 lateral and dorsal surfaces. 



The radials have a finely beaded distal edge as is frequently the 

 case in A. philiberti. 



The twelve arms are 85 mm. long; one ray bears one IIBr 4(3 + 4) 

 series, which carries (internally) a IIIBr 2 series. 



P 1 is small and slender, 6 mm. long with twenty-four segments 

 which become about as long as broad on the fifth, the remainder being 

 slightly longer than broad ; the second-eighth bear a high broad finely 

 spinous carinate process which rapidly decreases in height after the 

 third; P 2 is 10 mm. long with twenty-five segments of which the 

 fifth-seventh are about as long as broad and the distal are twice as 

 long as broad ; the second-ninth are diminishingly carinate, the outer 

 border of the carination being convex on the second but parallel to 

 the longitudinal axis of the segment on the remainder; the pinnule 

 is evenly tapering and is proportionately larger than P 2 ; P 3 is 13 mm. 

 long with twenty-four segments ; it resembles P 2 , but the supple- 

 mentary ridge is strongly indicated, and it becomes more distinctly 

 triangular distally ; P 4 is 7 mm. long with eighteen segments, the 

 second-fifth with proportionately higher carinate processes than the 

 corresponding segments of the preceding pinnules ; P r , is 4.5 mm. 

 long with fourteen segments of which the second-fifth are very 

 strongly and the sixth somewhat carinate ; the following pinnules 

 resemble P B ; the distal pinnules are slender, 7 mm. long with nineteen 

 segments of which the outer are about twice as long as broad. 



