The calyces are more like truncated cones than verrueae ; or, they may be likened to 

 domes with their tops removed. A typical one measures i.i mm. in height and 1.5 mm. in 

 diameter. The top is flattened, not rounded as in G. rigida, and there is a distinct series of 

 S lobes around the margin. The dorsal surface of the tentacles bears a number of spicules, 

 principally girdled spindles. 



The coenenchyma is thin, and the axis solidly calcareous 



Spicules. These are mostly doublé heads and girdled spindles, as in the last species. 

 A few small, regular tuberculate spindles and clubs are also seen. The tubercles, although 

 closely set, are usually plainly in whorls on the spindles. Sometimes the girdle is obliterated 

 by such a whorl. 



Color. The colony is bright scarlet throughout. 



General dis-t ribution. The type locality is Batavia; East Indies in general. 



3. Gorgonella dclicatula new species. (Plate I, figs. 2, 2 a ; Plate X, fig. 1 ). 

 Stat. 257. In Duroa Straits, Kei Islands. To 52 meters. 



Specimens fragmentary, the largest being a rlabellate branch, incomplete at both ends, 

 5.4 cm. long. The main branch is curved in a very open "S", and gives off seven branchlets 

 from one side, four of which are compound ; and four branches from the other side, three of 

 which are compound. The branchlets give off ultimate twigs in an irregularly alternate manner. 

 The main branch is but 1.2 mm. in diameter, and the ultimate twigs about .5 mm. The latter 

 are usually regularly curved. The calyces are lateral and alternate in position. 



The individual calyces are very low rounded verrueae, a typical one measuring .5 mm. 

 in height and 1.1 mm. in diameter at the base They are about 1 mm. apart, on the average, 

 and vary greatly in size. The ends o f the twigs are swollen, and contain two opposite calyces 

 that are considerably larger than the others. In general, however, the calyces are rnuch smaller 

 than in any other species of this genus in the collection. There are a few minute spicules on 

 the dorsal surfaces of the tentacles, but it is difhcult to ascertain their arrangement. 



The axis is very hard, calcareous, with very deep grooves or impressions of the water- 

 vascular canals. The coenenchyma is thin. 



Spicules. These are much like those of Gorgoncl/a rigida, consisting of very heavily 

 tuberculated girdled spindles, quite stout, oval in outline and with the girdle often obliterated 

 by the encroachment of the tubercles. The doublé heads are relatively much less abundant 

 than in other species of the genus in the collection, and regularly tuberculate spindles with 

 the tubercles in whorls seem to be lacking. 



Color. The colony is bright coral red, distal parts of the calyces yellow and the polyps 

 (in alcohol) white. 



This species is much more delicate than any other member of the genus that the writer 

 has seen. 



SIBOGA-EXPEDIT1E XII! /' 3 . 2 



