42 



Specimen 



Author 



Size in centimeters (height first) 



Remarks 



Spirastrella vagabunda . . 

 Spirastrella fungoides. . . 

 Spirastrella congenera. 

 Spirastrella solida . 

 Hymeniacidon angnlata . . 

 Hymeniacidon angulata . 

 Suberites inconstans var. glo- 



bosa (B.M. 25?) . . . 

 Suberites inconstans var. tnae- 



andrina (B. M. 9) . . . 



964 a 



964 b 



966 a ........ . 



98 



305» 



305^ 



305C 



6l2b 



6l2 c 



1341 a 



Suberites inconstans var. digi- 



tata (B. M. 23) . . . . 



1975 



Dendy 

 Dendy 



Rdl. & Dy. 



Rdl. & Dy. 



bowerbank 



bowerbank 



Dendy 

 Dendy 



5 



8.8 X4-7 X47 



3.5x2.5 



8.8 x 54 



6X 19x30-5 

 4X9X11 



(20?) x 16 X 16 



(20?) X 30.x 30 



18 x 13 x 13 



12 x 8 X 8 



5X7X 19 

 13X5X7 



9 (height of processes) 



10 (height of processes) 

 13 (height of processes) 

 5.5 (height of processes) 



8 (height of processes) 



(breadth at top 12) 

 19 (height of processes) 



15-5 >' 15 X 5 

 30 (height of processes) 



diam. of proc. average 1 7 mm. 

 diam. of proc. 20 — 30 mm. 



As to the color, Dendy says that his specimens of Suberites inconstans are (dried !) 

 light brownish orange ; about the same is stated by Thiele. On the whole my specimens of 

 trop. tubulifera, trop. concrescens and trop. glaebosa are likewise yellowish (ochroleucus, ochraceus, 

 fulvus, sometimes more ferrugineus). My specimens of trop. tegcns come nearer to melleus ; 

 those of the other tropi are generally latericius, badius, castaneus and such shades; but 426 a 

 and 426 b are melleus and 1365 on the other hand is between fuligeneus and castaneus. Of 

 course the color of dried specimens is of little value; still less that of spirit specimens. I 

 mention it only because of the fact, stated above, that in some tropi the color is usually 

 yellowish, in others generally brownish. Topsent states, that S. /uiua.r, when alive, is "rouge, 

 rosée, jaune d'ocre, jaune pale". The single specimen I found in Naples was in the living state 

 between incarnatus and testaceus. The most remarkable color we met with in Spirastrella 

 ptirpurea is the famous purper color; we see it in various shades, now more carmin-like, then 

 more violet (atropurpureus, purpureus, vinosus etc). Such colors are known to occur in 

 S. bonnetti (Topsent), Suberites wilsoui (Carter), Alcyonium purpur eiim (Lamarck, Topsent). 

 As stated before there is a tracé of it to be seen in the brownish var. albidus of Carter's 

 5. wilsoni (B. M. 15)- I find in some specimens of g2 a-1, which on the whole are between 

 badius and latericius, a distinctly purplish tinge (atropurpureus). Whether this purplish color, 

 which we see in several specimens of 5. purpurea is formed by the sponge or due to other 

 organisms is not certain. At any rate it is a highly remarkable color because of its resistence. 



