67 



The single specimen of Etiplectella regalis was found near the Andamans 13* 

 27' N. 93" 14' 30" E. in a depth of 741 m.=405 fths. 



Regadbella 0. Schmidt. 



Firmly attached tubes with terminal sieve-plate and numerous circular 

 parietal apertures ; with oxyhexasters or oxystaurasters in the parenchyme and a 

 floricom attached to the distal ray of each one of the sword-shaped oxyhexactine 

 hypodermalia. 



Begadrella decora F. B. Sch. 

 Plate XXU, figs. 10-18. 



1900 Begadrella decora F. E. Sch. in Abh. Prenss. Ab. 1900 pp. 30-34 Taf. VI figs. 10-18. 



The fragments on which this species is based would hardly have sufficed for 

 a proper specific diagnosis if they had not contained those peculiar spicules, 

 previously only known from Begadrella oMnoseana, where they have been describ- 

 ed by Ijima as oxystaurasters (formerly oxytetrasters), in the Journal of the 

 College of Science, Imperial University, Tokyo, Japan, Vol. XV. p. 237. I will 

 here give the abridged diagnosis of Begadrella oMnoseana published by him 

 preliminarily in the Zoologischer Anzeiger for 1896, Nr. 504. 



" Similar to Begadrella phoenix in form and in general arrangement of the 

 •' spicules, but with the following characteristic features : 



" The spaces between parietal openings (up to 3 mm. in diameter and 3-15 

 " mm. distant from one another) are elevated into irregular ledges and protuber- 

 " ances that may attain a height of 20 mm. A broad cuff surrounds the arched, 

 " terminal sieve-plate. 



" Distal ray of sword-shaped hypodermals short and mostly rounded at end 

 " This and paratangentials sparsely beset with prickles near ends. 



"Among the parenchymal diacts, there occur in abundance oxyhexacts with 

 "finely spinous rays of 0"055-0"14 mm. length. 



" Rosettes are present in three forms : (1) oxytetrasters * or occasional 

 "oxyhexasters, (2) graphihexasters, and (3) floricomg. In what I have called 

 " oxytetrasters * the principals form a regular cross and the terminals, usually 4 

 " in number to each principal, end in a point after a diverging, somewhat wavy 

 " course. Floricoms similarly shaped as in B. phoenix. 



" Of several specimens collected, but one is in a perfectly uninjured condi- 

 " tion. The latter is 185 mm. long and 77 mm. broad at the cuff." 



* Subsequently in Jonrn. Coll. Sci. Tokyo, Vol. XV. p. 237 termed oxystaurasters. 



