220 SMITHSONIAX MISCELLANEOUS COLLECTIONS VOL. 52 



Syzygies occur between the third and fourth brachials, again be- 

 tween the forty-fourth and forty-fifth to the fifty-sixth and fifty- 

 seventh (usually nearer the latter), and distally at intervals of 6-11 

 (usually 7-9) oblique muscular articulations. 



First pinnule 10 mm. long, slender but somewhat stiffened, taper- 

 ing evenly from the base to the delicate tip, with 22 joints, the first 

 about twice as broad as long, the fourth squarish, then gradually in- 

 creasing in length, the seventh and following being about half again 

 as long as broad; second pinnule usually slightly longer, with 17 

 joints, those in the distal part being more elongated than the corre- 

 sponding joints in the first; third pinnule 5.5 mm. long, of the same 

 character as the two preceding, with 12 joints; following pinnules 

 small, short, and delicate, 4 mm. long, with 12 joints, the first three 

 squarish, the remainder longer than broad, becoming about twice as 

 long as broad distally; distal pinnules 7 mm. long, with 20 joints, 

 the first short, the second squarish, the third about half again as 

 long as broad, the remainder about twice as long as broad, or rather 

 longer. 



Measurements. — Arms 90 mm., cirri 35 mm. to 40 mm. in length. 



Color (in spirits). — Brownish gray. 



Ty/'t'.— Cat. No. 25455, U. S. N. M.. from Albatross Station No. 

 5163; south of San Gasanga (Tataan group) ; 28 fathoms. 



HIMEROMETRA PROTECTUS (Lutken) 



Simonor, Tataan Islands. 



Pangasinan Island ; also a specimen witli no definite locality 

 given. 



HIMEROMETRA MONACANTHA (Hartlaub) 



Station No. 5109; Simo Banks, southwest of Manila Uay, Luzon; 

 6 fathoms. 



Station No. 5147; off Balinpongpong Island (south of Jolo) ; 21 

 fathoms. 



Genus CYLLOMETRA A. H. Clark 



CYLLOMETRA SUAVIS, new species 



This species is allied to C. perspiiiosa, with which it agrees in its 

 general structure ; but it entirely lacks the prominent spinous over- 

 lapping of the pinnule and cirrus joints characteristic of that species, 

 and the lower pinnules, while stiffened as in C. pcrspinosa, are sub- 

 equal in length and not elongated, and arc mucli more slender than 



