222 SMITHSONIAN MISCI^LLANEOUS COLLECTIONS VOL. 52 



obliquely wedge-shaped, about as long as broad, and gradually less 

 and less obliquely wedge-shaped distally ; costals and lower brachials 

 with a faintly indicated rounded median keel ; brachials after about 

 the eleventh developing slightly overlapping and spinous distal 

 edges. Syzygies occur ordinarily between the third and fourth, 

 ninth and tenth, and fourteenth and fifteen brachials, and distally at 

 intervals of seven to eleven (usually nine) oblique muscular articu- 

 lations. 



First pinnule moderately stout, with 7 or 8 squarish joints, about 

 2 mm. long; second pinnule about 3 mm. long, considerably stouter 

 than the first, with 9 or 10 joints, the first two not quite so long as 

 broad, the third squarish, the remainder slightly longer than broad ; 

 third and following joints with strongly overlapping and spinous 

 distal edges ; third pinnule similar, but smaller ; fourth pinnule, 

 while similar to the third, is about the size of the first ; after the 

 twelfth or thirteenth the pinnules increase in length, reaching about 

 4.5 mm. distally. 



Measurements.— Arms 55 mm., cirri 12 mm. in length. 



Color (in spirits). — Costals while, with a broad median line of 

 purple ; arms purple, with a median line of white in their proximal 

 third ; cirri white, with a narrow band of purple about the middle of 

 each joint. 



Type. — Cat. No. 25444, U. S. N. M., from Albatross Station No. 

 5153; east of Port Dos Amigos, Tawi Tawi ; 49 fathoms. 



The slender and spiny cirri with comparatively numerous joints, 

 as well as the delicate build of the whole animal and the shortness 

 and stoutness of the lower pinnules, distinguish this species at once 

 from all the others of the genus. 



OLIGOMETRA PULCHELLA A. H. Clark 



'One specimen from Station No. 5139; between Jolo and Panga- 

 sinan Island ; 20 fathoms. 



This species was previously only known from Singapore. 



Family TROPIOMETRID^ 



Genus CALOMETRA A. H. Clark 



CALOMETRA CARDUUM, new species 



This species is a member of that division of the genus Calometra 

 in which the rays, through lateral processes, are more or less in con- 

 tact, and comes nearest to C. flavopurpurea, of Japan. 



