vol. i.i Torrey. — Hydroida of the Pacific Coast. 7< 



stem, as stated by Nutting with reference to the specimens from 

 Santa Barbara. On the same stem there may be one, two or 



three t<> an internode, at rding as none, one or two nodes 



respectively have been suppressed. The tentacles number 17-22. 

 In other respects, the Pacific Grove specimens agree with 

 Nutting's description. 



Plumularia lagenifera Allman. 



Plumularia lagenifera, Allman, .lour. Linn. Soc. Lond., Zocil., 1885, 



xix, p. l.vr. 

 Plumularia californica, Marktanner-Turneretscher, Ann. desk. k. nat. 



Hofmus., 1890, V, No. 2, p. 255. 

 Plumularia lagenifera, Nutting, Am. Hydr., Pt. I. The Plumularidae, 



1900, p. 65. 



Distribution. Off San Pedro and Santa Cruz, Cal. Berg- 

 Inlet, Al. Puget Sound (Nutting). 



The single specimen from San Pedro is a slender stem 

 200 mm. long, of uniform thickness and almost denuded of 

 hydrocladia. Here and there, however, are hydrocladia with 

 one or two hydrothecae. There are from one to four non-thecate 

 internodes at the base of each hydrocladium, one to three between 

 hydrothecae, varying in length. The thecate internodes have the 

 characteristic shape, septa and hydrothecae of /'. lagenifera. 



Gonosome absent (August, 1901). 



The Santa Cruz material consists of several stems growing 

 on Styela montereyensis attached to wharf piling. Their great 

 variability gives them a position intermediate between the typical 

 P. lagenifera and the variety seplifera which at first I took to be 

 a distinct species. One or several internodes may intervene 

 between hydrothecae. They may each have one or two septal 

 ridges. The supracalycine nematophores may originate below 

 the margin of the hydrothecae. Some cauline internodes are 

 furnished not only with proximal and distal septal ridges but 

 with one between these and one on the shoulder supporting the 

 hydrocladium. 



The stems reach a height of 20-25 mm. There is no gonosome 



(December, 1895). 



