20 "endeavour" scientific results. 



Genus Sertularella, Qray. 



SERTULARELLA D1VARICATA (Bush.) 



(Plate ii., figs. 1—9.) 



Sertularia divaricata, Busk, Voy. Rattlesnake, 1852, p. 388. 



Sertularella divaricata, Rale, Cat. Austr. Hytl. Zoopli., 

 1884, p. 110, pi. iii., fig. 9, pi. xix., fig. 20; id. Proc. 

 Linn. Soc. N. S. Wales, (2), iii., 1888, p. 761, pi. xvi., 

 figs. 1 — 2 (var. dubia), p. 761, pi. xvi., figs. 3 — 4 

 (var. subdichotomd) ; Schneider, Zool. Jahrb, 10, 1897, 

 p. 525; Hartlaub, Abb. Nat. Ver. Hamb., xvi., 1900, 

 pp. 23, 27, 38, pi. iii., figs. 15—20; Ritchie, Mem. 

 Austr. Mas., iv., 1911, p. 839 (var. subdichotoma). 



Sertularella subdichotoma, Kirchenpauer, Abb. Nat, Ver. 

 Hamb., viii., 1884, p. 46, pi. xvi., figs. 1 — lb; Hartlaub, 

 Abb. Nat. Ver. Hamb., xvi., 1900, p. 33—38, pi. i , figs. 3, 

 4, 6—9, 11—16, pi. ii., figs. 10—17, 51—52, pi. iii., figs. 3, 

 4, 13, 11 ; id. Voy. " Belgica," 1904, p. 6 ; id. Zool. Jahrb., 

 Suppl. vi., Band iii., 1905, p. 629, figs. V 3 , W 3 ; Jiiderholm, 

 Arkiv for Zoologi k. svenska Vetenskapsakad., i., 1903, p. 

 278, ii., 1904, p. 3, vi., 1910, p. 4; id. Schwed. Siidpolarexp., 

 1901—3, vi., 1905, p. 25, pi. ix., fig. 8 ; Nutting, Amer. 

 Sertularidae, 1904, p. 96, pi. xxii., figs. 8—12; Vankoffen, 

 Deutsche Sudpolarexp. , 1901 — 3, xi., Zool. iii., 1911, p. 

 326, fig. 41 a— e. 



Sertularella JoJinstoni, Bale, Cat. Austr. Hyd. Zooph., 1884, 

 p. 109 (in part), pi. iii., fig. 7, pi. xix., fig. 21 ; id. 

 Trans, and Proc. Roy. Soc. Vict., xxiii., 1887, p. 93 

 (in part); id. Proc. Roy. Soc. Vict,, vi., N.S., 1893, 

 p. 102; Billard (in part), Ann. Sci. Nat. (9), xi., 1910, 

 p. 13. 



(Not Sertularia Johmtoni, Gray, Dieff. N. Zealand, ii., 1843 

 p. 294). 



Hydrocaulus monosiphonio, pinnate or bipinnate, or with 

 irregular subdichotomous ramification ; the more regular forms 

 with the pinna? alternate, three hydrotheca? between every two 

 pinnae on the same side. 



Internodes of the stem usually bearing from one to three 

 hydrotheca? ; those of the pinnae generally bearing only one each, 

 but in some varieties often having more than one, especially on 

 the proximal portions of the pinna?. Many of the pinna? 

 terminating in long twisted tendrils, which may become attached 

 to other parts of the polypidom. 



