1880.] PROF. F. J. BELL ON THE TEMNOPLEURID^. 427 



forms which were collected by Captaia H. C. St. John (H.M.S. 

 ' Sylvia '), and which have been so well described by Mr. W. Percy 

 Sladen ' as the young of S. sulcata. 



The number of specimens of this genus, however, is by no means 

 large ; and though thus increased it is not yet sufficient to enable us 

 to answer all the problems which the genus presents to us. On the 

 other hand, the question of whether or not one should put out such 

 results as have been attained to, seems to me to be more readily 

 answered in the affirmative in the case of groups, specimens of which 

 ■ are notoriously infrequent. In other words, where specimens or series 

 are scarce, bibliographical aid may be advantageously increased, and 

 that the more when, as here, very little of that kind of work is al- 

 ready available. This section of the present communication will 

 also differ in character from that of the greater part of the rest, by 

 entering into a fuller account of the constituent species. 



The reader shall first be put in possession of the number and charac- 

 ters of the more important specimens now in the British Museum : — 



1. Salmacis bicolor. 



a. Two tests, without spines or abactinal plates, buccal membrane, 

 or dentary apparatus. Coll. Inwood. Hab. ? 



b. A fine specimen in spirit, perfect. Coll. H.M.S. 'Challenger.' 

 Zamboanga. 



2. S. DTJSSUMIERI. 



a. Four dried denuded specimens. Coll. Inwood, Hab. ? 



(The Toreumatica concava of Gray.) 



b. One injured denuded test. No history. 



3. S. GLOBATOR, vide infra. 



4. S. RARISPINA. 



a. A denuded specimen with abactinal and anal area complete. 

 Bondy Head. Earl of Derby. 



b. A similar specimen. " Portugal." Purchased of Cuming. 



c. Small, denuded. H.M.S. 'Challenger,' Station 188. 



d. Two small, with a few spines. H.M.S. ' Challenger.' Station 

 186. 



e. A larger specimen with some spines. H.M.S. ' Challenger,' 

 Station 186. 



/. A small dry test. Coll. Belcher. East Indies. 

 (/. A small dry test with a few spines. Mindanao. (I place this 

 specimen here with considerable hesitation.) 



5. S. SULCATA. 



a. Three small specimens, with some spines. Coll. St. John. 

 34°38'N, 126° 24' E. 



6. Two, with spines, in spirit. H.M.S. 'Challenger,' Island 

 of Mactan, Cebu, Philippines. 



' J. L. S., Zool., xiv. p. 439. 



