356 OK THE ' CHALLENGES ' SPECIES OE CELLEPOEA. 



curved, with an avicularium on the summit. Interspersed avicu- 

 laria few in number, of small size, with a spatulate mandible. 

 Oceciurn small, spherical, deeply immersed, punctured in front. 

 Sab. Simon's Bay. 



25. C. ansata, n. sp.* 



Char. Zoarium in the form of small stellate growths or tufts, 

 having three or four conical-pointed divisions. Zocecia deeply 

 immersed at the base, but more free and erect above ; surface 

 shining, rugose. Orifice circular, notched; peristome, in the 

 older zocecia, produced in front and on the sides into a long 

 tubular or rather canalicular process, which supports on each 

 side a small avicularium with a semicircular mandible. Numerous 

 interspersed avicularia with curved, spatulate, thin, membranous 

 mandible. 



Hal. St. 75. Lat. 38° 37' K, long. 28° 30' "W. ; 450 fins., sand. 

 Parasitic on a small Sertularian. 



26. C. CANALICTTLATA, U. Sp.f 



Char. Zoarium pisiform. Zooecia ventricose, tolerably distinct ; 

 surface rough, entire. Orifice orbicular and notched in front, or 

 more usually clithridiate. A strong curved preoral rostrum, from 

 which a thin expansion is continued on each side of the orifice so 

 as to form a spacious spout-like cavity, at the bottom of which 

 the mouth is situated. On the posterior aspect of the process, 

 near the summit, is an avicularium with a semicircular mandible ; 

 the apical portion of the process is cylindrical. 



Hob. St. 48. Lat. 43° 2' N., long. 64° 2' W. ; 51 fms., rock. 



27. C. BIDENTICULATA, n. Sp.J 



Char. Zoarium small, pisiform. Zocecia ventricose ; walls thin, 

 sparsely punctured. Orifice sub clithridiate, with two very minute 

 denticles within the lower border ; peristome, in the older zooecia, 

 raised on one side into a thin canalicular expansion, and on the 

 other side into a thicker process, which supports, on its inner 

 face, a rather large avicularium, with a triangular obtuse mandible. 



Hob. St. 163 a. Off Port Jackson, 30-35 fms., rock. Parasitic 

 on a Sertularian. 



* " Chall. Eep." pi. xxviii. fig. 5. t " Chall. Eep." pi. xxx. fig. 5. 



J " Chall. Eep." pi. xxx. fig. 6. 



