214 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 52 



HIMEROMETRA MAGNIPINNA, new species 



The absence of prominent dorsal spines on the cirri of this species 

 separate it at once from //» crassipinna and H. bartschi, and give the 

 cirri a certain resemblance to those of H. robustipinna; but they are 

 smaller than those of that species measuring only one-quarter of the 

 arm length instead of rather over one-third, and are correspondingly 

 delicate. 



The proximal pinnules, however, are different from those of any 

 other form ; they are very stout, but also very long, and taper evenly 

 from the base to the tip; the distal ends of their component joints 

 are slightly swollen, but are not spinous and overlapping as in H. 

 crassipinna; the taper is much more gradual than in that species, 

 while the pinnules have 28 or 29 joints instead of 20. 



The arm structure and arrangement is as in H. crassipinna, H. 

 bartschi, and H. robustipinna. 



The type specimen has 62 arms 120 mm. long, and 25 cirri 30 mm. 

 long, with 28 to 32 (usually 28 to 30) joints. 



Color (in spirits). — Dull violet. 



Type. — Cat. No. 25440, U. S. N. M., from Albatross Station No. 

 5139; between Jolo and Pangasinan Island; 20 fathoms. 



This species was also found at Station No. 5147; off Balinpong- 

 pong Island (south of Jolo) ; 21 fathoms. 



HIMEROMETRA PERSICA A. H. Clark 



Station No. 5163; south of San Gasanga (Tataan group); 28 

 fathoms. 



Another specimen has no definite data as to locality. 



HIMEROMETRA BENGALENSIS (Hartlaub) 



Station No. 5146; west of Tapul Island (south of Jolo); 24 

 fathoms. 



HIMEROMETRA QUINDUPLICAVA (P. H. Carpenter) 



Station No. 5139; between Jolo and Pangasinan Island; 20 

 fathoms. 



Another specimen has no definite data in regard to locality. 



HIMEROMETRA ANCEPS (P. H. Carpenter) 



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

 fathoms. 



Other specimens have no definite locality given. 



