744 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxi. 



teeth are acumiuate instead of square. Found growing on specimens 

 of HydraUmania distans collected by the Young Naturalists' Society in 

 Puget Sound, 1895. Named in honor of Mr. Trevor Kincaid, of Wash- 

 ington University, -who is doing much to advance our knowledge of the 

 marine fauna of the far Northwest. 



CAMPANULARIA LINEATA, new species. 

 (Plate LXII, fig. 3zl, i;.) 



Trophosome. — Hjdrocaulus springing from a creeping root stalk and 

 consisting of unbranched pedicels which are more or less aunulated 

 throughout and two or three times as long as the hydrothecim. 



HydrotheciP exceedingly thin and delicate in texture, large, larger 

 than Clytea johnstoni, about one and one-balf times as deep as wide, 

 sides parallel, bottom rounded in the form of a half sphere, aperture 

 armed with twelve to fourteen evenly rounded teeth. At each inter- 

 dental space the margin is sharply crimped, the edge of the crimping 

 forming a distinct straight line down the side of the hydrotheca nearly 

 to the bottom. 



Gonosome. — Unknown. 



Localitij. — Puget Sound, found growing on Halecium genicidatum. 

 Collected by tbe Young Naturalists' Society, 1895. 



This very large and strikingly ornamented species is probably most 

 nearly allied to G. hinclsii Alder,' from which it differs in its exten- 

 sively corrugated stem, and the proportions, shape of teeth, and deli- 

 cate texture of the hydrothecii?. 



It will be noticed that the longitudinal lines on the hydrothecae are 

 very different from the flutings of the preceding si)ecies. In the latter 

 the sharp ridges formed by the fiutings are continuous with the points 

 of the teeth, while in G. lineata the ridges are continuous with the 

 interdental spaces. 



The comparative sizes of the two species are correctly illustrated by 

 the Jigures, which are camera lucida sketches with the same magni- 

 fication. 



This species is also closely related to G. groenlandica Levinsen,^ from 

 which it differs in the almost exactly parallel sides of the hydrothecae 

 and more extensively annulated peduncles. 



HALECIUM GENICULATUM, new species 

 (Plate LXIII, figs. 1 A-D. ) 



Trophosome. — Ilydrocaulus but slightly fascicled proximally, simple 

 for the most part, branching very irregularly with a tendency to an 



' A Catalogue of the Zoophytes of Northumberland and Durham, Trans. Tyneside 

 Nat. Field Club, 1857, p. 37. 



2Med".sea, Ctenophorer, og Hydroider fra Gron lands Vestkyst, Copenhagen, 1893, 

 p. 26, pi. V, figs. 10-12. 



