60 S. F. Clark on New and Rare Species of Hydroids. 



Campanularia noliformis McCrady. 



Plate X, fig. 5. 



A few specimens of this species were collected at low-water, near 

 Savin Rock, in the latter part of September, 1 874, attached to Zostera 

 marina. 



The hydrarium agrees very well with McC-rady's description. We 

 were not fortunate enough to find the gonotheca?. 



This is the first time this species has been recorded since McCrady 

 described it from the harbor of Charleston, S. Carolina, in 1857. 



Campanularia calceolifera Hincks. 



Ann. and Mag. of Nat. Hist., vol. viii, Aug., 1871, page 78, pi. vi. 

 Plate X, figs. 7, 8. 



Stem filiform, slender, flexuous, sometimes slightly branched, ringed 

 at the base and above the origin of the branches, light horn-coloi', 

 with the upper portions pellucid white; branches short, curving out- 

 ward, undivided, and bearing but two or three calycles. Hydro- 

 thecse alternate, broadly campanulate, deep, with a slightly everted 

 entire rim, and borne on annulated pedicels of variable length, those 

 on the upper portion of the stem consisting of five to eight rings, 

 those near the base, of twelve to twenty. At each bend, of the stem 

 a single hydrotheca is given otf, and tliese all ciirving outward give 

 to this species a very gracefu.1 habit. Gonotheca? axillary, borne on 

 pedicels consisting of three or four rings, largest at the distal ex- 

 tremity and tapering gradually toward the base, with a peculiar in- 

 curved coil or twist at the distal end near the opening ; the apei*ture 

 is shield-shaped and placed in a depression on one side of the distal 

 end. An internal membrane extends inward from the shield-shaped 

 opening and terminates in a circular orifice near the distal extremity. 

 Height about one inch (25"""). 



Noank, Conn., from the bottom of an old scow, Sept. 9, 1874, with 

 gonothecse; piles of wharves at Woods Hole, Mass., Aixg., 1871, 

 with gonothecse — U. S. Fish Commission. 



Hincks' figures represent the hydrothecae as being more everted 

 than they are in the American specimens ; otherwise they exactly 

 correspond. This is the first time this species has been recoi'ded 

 from the American coast. 



