104 ZOOLOGICAL COLLECTIONS MADE DURING [Jan. 4, 



species ; the stem is about 2 millims. thick at the base, and is strong 

 and of a dark-brown colour there, but pale yellow at the apex ; the 

 pedicle of the hydrophores (Jllman) varies somewhat in length ; the 

 first cup, followed by a joint, is generally succeeded by a rather long 

 space devoid of cups, which then appear close together up to the 

 number of four in some cases, in others at intervals as great ns that 

 between the first and second. Stem generally simple, but in the 

 largest 'example (twisted round by several tubes, possibly foreign to it) 

 at the base. 



Gonosome (not previously described). Gonophores inserted on 

 pedicle of hydrophores, just below the first joint, by a stalk ; they 

 are transversely oval in outline, and have a thin, very pale capsule. 



Hab. Sandy Point, 7-10 fathoms; on large worm-tube. 



Sertularella johnstoni, Gray. 



Sertulariajohnstoni, Gray, Dieffenbach's New Zealand, ii. p. 294. 



Several specimens, generally pale brown in colour ; the hydrothecse 

 moderately distant, and elongate and free to a great extent, tapering 

 almost from base, or slightly swollen just above it; lateral teeth 

 very small, lip sometimes ringed. Gonothecal tube varying from a 

 short and straight to a prominent trumpet-shaped opening. Inter- 

 nodes generally include a large number of calicles, joints very 

 faintly marked; oblique rings of stem scanty, often wanting. 



A doubtful specimen from Sandy Point, 7-10 fathoms, has the 

 calicle considerably swollen at base, and bent outwards at a spot 

 about two thirds of its length from that point. 



Hab. Trinidad Channel, S W. Chih, 30 fathoms; also Sandy 

 point, 7-10 fathoms, on large worm-tube. 



Sertularella polyzonias. 



Sertularella kerguelenensis, AUman, Ann. & Mag. Nat. Hist. ser. 

 4, xvii. p. 113. 



S. polyzonias, AUman, Phil. Trans, clxviii. p. 282, footnote. 



Growing to upwards of an inch in height. The orifice of the 

 gonangium forms a very short tube ; the annulation is continued to 

 within one quarter of the length from the pedicel. Several colonies. 

 Represents the southern variety now united to S. polyzonias. 



Hab. Trinidad Channel, S.W. Chili, 30 fathoms., on a stiff stem 

 (Fucus 1) ; and ? Sandy Point, 7-10 fathoms, on worm-tube (young, 

 without gonangia) . 



Sertularia trispinosa. 



Sertularia trispinosa, Coughtrey, Trans. N.Z. Inst. vii. p. 284, 

 pi. XX. figs. 14 & 15. 



Rises from a creeping fibre. Growth upright ; branches very 

 distinct, and given off equally on both sides. Maximum height 

 quite 100 millims. No gonangia observed. 



Hab. EHzabeth Island, Straits of Magellan, 6 fathoms, on stem 

 of seaweed, in company with Polyzoa. 



