114 ZOOLOGICAL COLLECTIONS MADE DURING [Jan. 4, 



External Characters. Skeleton. Spicules. 



/"Erect, branclied; sur- Stoutest fibre super- Size -0887 by 002 11 



Claclochalinaarmigcra, \ face covered with ficially cored by millim, 



Schmidt (Florida-^ spines; vents scat- spicules; its masi- 



and Antilles). I tered, 3 millims. in mum diameter about 



1^ diameter. •884 milhm. 



^ Subereot, luibranched ; Stoutest fibre some- Size _ -070 by -001267 



-, . I surface smooth, only times cored, asially. millim. 



C.arimgera,^^ pe>--\ j-gudered uneven bv by spicules; max- 



gamcnicwca (J.\\^n.J, ^^^ ^^^ ^^^.j^^ ^^ imum diameter -14 



tic, off East Brazil), j vents, 2 to 3 millims. millim. 

 1^ in diameter. 



Older EcHiNONEJViATA, Cartel'. 



Phakellia egregia, sp. n. (Plate X. fig. ti.) 



Form erect, stipitate, ramose ; bases of branches flattened, ends 

 rounded. Surface hirsute, owing to freedom of echinating columns 

 from the axial skeleton for from -7 to 1*25 millim. of their length. 

 Colour (in spirit) yellowish white. Skeleton-axis typically Axinellid, 

 diameter about the same as the length of an echinating column ; 

 longitudinal lines from -18 to •25 millim. apart, multispicular, com- 

 pact. Echinating columns very distinct, connected with each other 

 for about one third of their length by horizontal bars of single spicules, 

 and strongly echinated from their bases upwards. Parenchyma very 

 pale yellow, slightly granular. 



Skeleton-spicules of four kinds, viz.: — (1) Setaceous acuate, smooth, 

 slightly curved, tapering to sharp point, very frequently swollen 

 near its base, size 1-207 by •01268 milhm., springing from axis and 

 lying between echinatiugcolumns. (2) Stouter, smooth, slightly curved 

 acuate, tapering to less sharp point, size either '8875 by -OIQ millim. 

 from within echinating columns, or •38 by '07416 when echinating 

 the columns. (3) Smooth acuate, sharply bent at about one fourth of 

 its length from the base, tapering to sharp point, size '2534 by •0095 

 millim., forming the bulk of the echinating and axial meshwork spi- 

 cules. (4) Smooth acerate, sharply bent, tapering to sharp points, 

 size "304 by ^01267 millim., forming part of the horizontal or cross 

 series of spicules, which lie between the echinating columns and 

 between the axial columns, not abundant. No flesh-spicules. 



Examined. In spirit and by mounting in balsam. 



External Characters. It is about G5 millims. high, and has a short 

 pedicel rising from a slight basal expansion. The branches lie ap- 

 proximately in one plane. It is firm in texture, owing to its well- 

 developed axis. The sarcode invests all but from '5 to '8 millim. of 

 the ends of the echinating columns. No oscula or pores were made 

 out. Sheleton very regular. The echinating spicules project in great 

 numbers from the columns at the usual acute angle. Sjncules. The 

 thick long acuates apparently form the backbone of the echinating 

 columns, though they are not always to be made out : the shorter ones, 

 of nearly the same breadth, occur in small numbers among the 

 smaller echinating spicules. The small number of acerates present 

 may be due to the youth of the specimen ; they are to be made 



