HYDROIDS. 839 



which bear one to four hydranths each, but sometimes also breaks subdichotomously into stout 

 limbs. The branches and the stalks of the hydranths start with some ill-marked rings. The 

 male gonophores are bithalamic, one or a few springing from the body of a hydranth. The 

 female gonophores are egg-shaped and grow in a cluster on a tentacleless hydranth. 



This species is akin to E. gracile Allra., from the West-Indian region (5, p. 7). 



Dredged in South Nilandu, Kolumadulu, and Mahlos Atolls, in 30, 24, and 22 fathoms 

 respectively. 



Order Calyptoblastea. 

 Family Campanularidae. Subfamily Campanularinae. 



Genus Gampanularia. 



3. Gampanularia serrulatella n. nom. subsp. 



Ohelia serrulata Thornely (16, p. 453). 



My specimens differ from Miss Thornely's only in two small points: (1) The teeth on 

 the rim of the hydrotheca are sharper. (2) The floor is rather nearer the bottom of the 

 cup. Of the two hydrothecae figured by Miss Thornely the right-hand one is more like 

 mine in having slightly curved sides. 



I do not regard this species as the Gampanularia serrulata of Bale (8, p. 757), from 

 which it differs considerably in the shape of the hydrothecae and in the mode of growth, 

 which is tree-like, with irregularly dichotomous branching. It has therefore been necessary 

 for me to give it a new name. 



Dredged in Mulaku, Addu, and Suvadiva Atolls in 30, 25, and 42 fathoms respectively. 



4. Gampanularia linearis (Thornely) subsp. (16, p. 453). 



My specimens differ from Miss Thornely's in two points only. (1) The longitudinal lines 

 on the hydrothecae, which she found "usually," and thought to be owing to the collapsing 

 of their delicate sides, are in mine always seen at the base of the teeth, from which they 

 reach about one-third of the way down the cup, and are due to ridges. (2) The teeth are 

 very sharp, not " blunted." 



Dredged in Suvadiva Atoll in 20 and 37 fathoms, and in N. Male in 27. The N. Male 

 specimens are smaller and more branched than those from Suvadiva. 



5. Gampanularia cheloniae Allm. subsp. (6, ii. p. 22), 



In my specimens the hydrothecae are somewhat wider than in the type. They were 

 dredged in N. Male Atoll in 25 fathoms, on coral. AUman's were from the back of a turtle 

 in an unknown locality. 



6. Gampanularia junceoides n. sp. (PI. LXIX. fig. 2.) 



Definition: A Gampanularia whose hydrocaulus consists of strong stems with few branches 

 and rare nodes, arising in a cluster from a branched hydrorhiza, and carrying large, narrow, 

 deep, alternate hydrothecae set on brackets, from which they are not marked off by a 

 joint but by a short, narrow stalk. The height is not more than 5 cm. in any of my 

 specimens. 



G. II. 108 



