402 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



stiffened lower pinnules. In T. indica the cirri are XIX-XXIX 

 (usually XXVI-XXIX), 20-26 (usually 23-26), 15 to 22 nun. (usu- 

 ally 20 to 22 mm.) long; the outer cirrus segments are half again as 

 broad as long up to the fourth from the end of the cirrus; the ante- 

 penultimate segment is about as long as broad; the last four segments 

 taper rather rapidly as usual. The cirri in T. indica are arranged in 

 two or three (usually two and a partial third) marginal rows instead 

 of m a single row, as in T. audouini. 



The brachial carination in this species differs from that in T. 

 indica in being broader, more rounded, and less sharp, and it is also 

 fringed with coarser spines on its distal border. 



Of T, indica 48 specimens have been examined, all from Ceylon or 

 adjacent parts of India. 



T. encrinus, with which I have previously confused both of these 

 species, has much larger cirri, which resemble those of the American 

 T. picta in havmg comparatively long instead of short segments in 

 the distal portion. 



TROPIOMETRA ENCRINUS A. H. Clark. 

 Tropiometra encrinus A. H. Clark, Proc. U. S. Nat. Mus , vol. 40, 1911, p. 3G. 



1. Eastern Asia; Cat. No. 5336. — One specimen, the type of the 

 species. 



The cirri are large and stout, XXIII, 20-23 (usually nearer the 

 latter), 20 to 25 mm. long; in the proportion of the component seg- 

 ments the cirri resembles those of T. picta. (See Proc. U. S. Nat. 

 Mus., vol. 40, p. 36.) 



2. Indian Ocean; Cat. No. 5335. — One specimen, much broken. 

 The centrodorsal and calyx have been laid open, showing beauti 

 fully the relationships of the dorsal cavities of the calyx. 



A specimen of this species in the collection of the Indian Museum 

 labeled " ?India" has the cirri XX, 23-25, 20 to 25 mm. long, resem- 

 bling those of the type. 



TROPIOMETRA PICTA (Gay). 



Tropiometra picta A. H. Clark, Proc. U. S. Nat. Mus., vol. 40, 1911, p. 35; Bull. 

 mus. hist. nat. Paris, No. 4, 1911, p. 13 (255). 



1. Santa Catarina Island, Brazil; Cat. No. 2875. — Two specimens 

 The larger of these has the cirri XXV, 23-25, 20 to 25 mm. long; 



the smaller has the cirri XIX, 20, 15 mm. long. 



2. Rio de Janeiro; Selenka; Cat. Nos. 1826 and 2690. — Thirty-nine 

 specimens. 



The details of the cirri of nine of these specimens are : 



(1) XXII, 21-23 (usually 22 or 23), 24 to 28 mm. long. 



(2) XX, 20-21, 17 mm. long. 



