91 



5- Hefcrog07'g!a humilis new species. (Plate XVII, figs, i, ia-^ Plate XXII, fig. 14). 

 Stat. 310. 8°30 S., iig°7'.5E. Flores Sea. 73 meters. Sand. 



Colony flabellate in form, 4.7 cm. in height and with a spread of 2.4 cm. The main 

 stem bears a small lateral 5 mm. from its base, and another, on the opposite side, 1 cm. from 

 the base. A little above this the main branch divides into two unequal parts, both of which 

 are alternately branched in an irregular manner, the average distance between the branchlets 

 being about 5 mm. In some cases branches of the third order are produced. The branches are 

 about I mm. in diameter, and the tips are turgid. The calyces are irregularly disposed on the 

 stem and branches, being more crowded on the sides than on the front and back. They are 

 about I mm. apart, on the average. 



The individual calyces are very low verrucas, almost included, showing but a small portion 

 of their walls above the general level of the ccenenchyma. They are about 1.2 mm. in diameter. 

 The margins are surrounded by a circlet of blunt but prominent points, and other similar points 

 project upward and outward from the walls. 



The polyps are completely retractile, but the margin does not close over them in 

 retraction. The operculum is well developed, each flap being composed of the ordinary three 

 spindles arranged in an acute-angled triangle. 



Spicules. These are of e.xceedingly varied types, as is characteristic of this genus. They 

 are all small, and take the form of crosses, stars, double stars, daggers, and irregular forms 

 with all sorts of points and projections. Many are small Stachelplatten. A very few small 

 spindles are seen, some of which are curved. 



Color. The colony is light brown, with a yellowish cast. The a.xis is almost black 

 proximally, lightening distally. The spicules are colorless. 



A specimen from the same station is much larger than the one described. It is 7.6 cm. 

 high, and more thrifty and vigorous in growth. The calyces are more crowded than in the tj'pe. 



6. Heterogorgia stellata new species. (Plate XV, figs. 5, 5^; Plate XXII, fig. 16). 

 Stat. 60. Haingsisi, Samau Island, Timor. 23 meters. Coral. 



Colony (incomplete) rudely flabellate in form, 8.4 cm. high and 4.8 cm. wide. The main 

 stem is broken off 3.2 cm. from its base, leaving but two short branches and one large one 

 that forms almost the entire type specimen. This branch arises 2 cm. from the base of the main 

 stem, curves outward and then upward, and bears branchlets in a rudely pinnate manner. These 

 again divide until branchings of the 4th order are sometimes produced. The average distance 

 between branches is about 5 mm. The branches are slender, being but a little over i mm. in 

 diameter. The calyces are so completely included and covered that it is difficult to ascertain 

 their distribution, particularly as the specimen is in poor condition. They seem, however, to be 

 sparsely distributed on all sides of the branches. 



The individual calyces are so completely immersed in the ccenenchyma that they admit 

 of but little description, especially as the type is in such poor condition that but i^^s of them 



