THOMSON AND MACKINNON — STOLONIFERA, ETC. 179 



Genus CAPNELLA. 



30. Capnella fungifo7-miis,^n\.enih.al. (Plate 5. fig. 11.) 



] or description see : — 



Kiikenthal : Versuch eiiier Revision der Alcyouarien. — II. Die Familie der Neplith3'iden, 1 Theil 

 (1903), p. 133, pi. 7. fig. 5, pi. 9. figs. 30-32. 



Tiiere is one representative of this species, 3 cm. in height by about 2-5 cm. across 

 the polypai'ium. The colour in spirits is brownish grey, lightening to whitish grey on 

 the upper parts. 



The polyp-spicules are small clubs and spindles. These bear rather strongly developed 

 spiny warts, which in some of the clubs approach foliate expansions. The following 

 measurements were taken of length and breadth in millimetres: — •■108 X '168, -238 X 

 •165, -187 X -059. 



In the stalk the spicules are stout cylinders, often almost barrel-shaped, and some- 

 times showing a constriction in the middle. They are closely covered with tuberculated 

 warts in a zoned arrangement :— -2041 X '085, "195 X "119, "17 X '012 mm. There are also a 

 few clubs and slender spindles: — '119 x "034, '085 X '051 mm. The spicules of the thick 

 canal-walls are of the same type as those in the stalk, except that the slender forms 

 are here absent. In the tentacles there are minute clubs and spindles : — "085 X '028, 

 051 X '017 mm. 



LocaMij. Coetivy. 



Previously recorded from the Indian Ocean (coast of Dar es Salaam). 



31. Capnella morula, sp. n. (Plate 13. fig. 6.) 



The collection includes a Capnella which is not referable to any of the hitherto 

 described species. 



The height of the colony is 3'5 era., with a maximum breadth of 2"5 cm. across the 

 polyparium. The stem is very flaccid and is longitudinally striated ; at a height of 

 about 1'5 cm. it passes over into the polyp-bearing portion, consisting of a closely- 

 packed "head" of low, rounded lappets, which are not very distinctly separated from 

 one another. The largest are 4-6 mm. in height. Over the lappets the closely-crowded 

 polyps are arranged in irregular whorls, the head of one usually fitting between the 

 bases of the two in the row immediately above, so as to give an imbricate effect to 

 the whole. 



The polyps are 1-1'5 mm. in height. They have generally light shallow longitudinal 

 grooviugs, and are incurved so strongly that their oral surface is completely hidden. 



The spiculation is very dense. On the polyps it consists of both slender and stout 

 curved and bent spindles, some with small and simple warts and others with larger, 

 more spiny, more numerous warts. The following measurements were taken of length 

 and breadth in millimetres :— -85 X -119, '731 X -102, -476 x "051, -35 X '051. There are 

 also a few small clubs with a foliate tendency : — '41 X036, '18 X '045 mm. 



The cortex of the stem contains numerous sj)iudles, rather stout and short, closely 

 covered with warts, which are prominent, blunt, and sometimes finely tuberculated. 



SECOND SERIES. — ZOOLOGY, VOL. XIII. 24 



