Kirkpatkick — Hydroida and Polyzoa, Torres Straits. 611 



been found, are present. They form small sub-sessile, flattened, 

 obliquely truncate bodies, with one of the two lateral borders 

 longer and more convex than the other. They form a line along 

 the stem, one at the base of each ramule. 



Some of the lower branches in A. effusa are opposite. 



Generally, there is only one supra-calycine sarcotheca, but two 

 sometimes occur. 



Habitat. — Murray Island, 15 to 20 fms. 



Aglaophenia brevirostris, Busk. 



There are several specimens of this elegant species. The stems 

 grow to a height of 1 to 1^ inches. The curved tubular hydro- 

 thecse resemble those of Aglaophenia vitiana, Kirchenpauer. In 

 the former the mesial sarcotheca is tubular, and opens at the 

 summit by a circular pore ; in the latter it is canalicular. 



The ramules are alternate, with two flattened sarcothecse at 

 the base. 



There are three teeth on each side of the hydrothecal orifice 

 and a median anterior one. 



The corbulse are about 2 mm. in length, with a hydrotheca at 

 the base of each rib. 



Habitat. — Murray Island, 15 to 20 fms. 



POLYZOA. 



[The numbers correspond to the numbers of the Stations.] 



Catenicella elegans, Busk. 8, 14. Bicellaria (Stirparia) haddoni, n. 



,, gilhosa, Busk. 8, 14. sp. 8. 



,, taurina, Busk. 14. Bugula john&tonce, Gray. 2, 14. 

 Scrupocellaria cervieomis, Busk. 14. ,, dentata, Larnouroux. 4. 



,, diadema, Busk. 14. Beania hirtissima, Heller ; form 



Caber ea lata, Busk. 14. cylindrica, Hincks. 14. 



Farcimia simplex, Busk. 8. Euthyris obtecta, Hincks. 14. 



,, oculata, Busk. 2, 8, 14. Flustra cribriformis, Busk. 2, 4, 

 -Vellaria gracilis, Busk. 14. 8, 14. 



Tubucellaria cereoides, Ellis & Solan- ,, reticulum, Hinks. 14. 



der. 14. Membraniporacoronata, Hincks. 14. 



