Hydrozoa and Polyzoa from the China Sea. 23 



Flustrella flabellariS) n. sp. (PI. IV. figs. 3, 3 a.) 



Zoariura brown, forming a flat soft flexible expansion, 

 loosely aclnate to the surface on which it grows, extending by- 

 narrow ligulate anastomosing processes. Zocecia large, long, 

 hexagonal, 1/2 mm. by *6 mm., flattened, rising at the oral 

 end to a tall tube ("6 mm. in height in retracted state), with 

 flat sides. No spines. Ctenostome? Tentacles of polypide 20. 



Hob. Growing over a sponge (Axinella) ; Tizard, 32 fath. 



Loxosoma crassicauda^ Salensky, ? sp. 



Loxosoma crassicauda, Salensky, Ann. Sci. Nat. 6 serie, vol. v. p. 2, 

 pi. xii. figs. 1,2; Etudes sur les Bryozaires Entoproctes. 



The specimens have the tentacles retracted, so that it is 

 difficult to accurately determine the number of them. In 

 general appearance, in the relation of the stalks to the polypides, 

 in the arrangement of the buds, and in the absence of a basal 

 peduncular gland, the specimens answer to the description of 

 L. crassicauda. The material is scarcely sufficient for the 

 purpose of making a satisfactory diagnosis. 



Hob. Growing on algas ; Tizard Reef, 27 fath. 



EXPLANATION OF THE PLATES. 



Plate TIL 



Fiy. 1. Stephanoscyphus Allmani, n. sp., natural size. 1 a. Hydrotheca, 

 showing- the poly}) with gastral ridges and introverted tentacles, 

 X 60 diam. 16. Section of hydrotheca, showing internal 

 chitinous processes, X 60 diam. 



Fig. 2. Stephanoscyphus simplex, Allnian, natural size. 2 a. Section of 

 hydrotheca, X 60 diam. 



Fig. 3. Zygophylax tizardensis, n. sp., natural size. 3 a. Branch, X 40. 

 3 b. Showing paired basal sarcothecae. 3 c. Portion of a main 

 branch, showing bundles of tubes from which arise sarcothecae-. 

 3 d. Hydrotheca, X 100 diam. 



Plate IV. 



Fiy. 1. Buyula scaphoides, n. sp., X 60 diam. 



Fiy. 2. Mncronella Thenardii, Audouin. 2 a. Tridentate orifice. 2 b. 



Mandible. * 



Fig. 3. Flustrella jiabellar is, natural size. 3 a. Ditto, X 60 diam. 

 Fiy, 4. Lichenopora capillata, X 4 diam. 4 a. Zocecium, X 60. 4 b. 



Ocecium, X 30. 

 Figs. 5, 5 a. Microporella coscinophora, Reuss. 

 Fiy. 6. Idmonea puklierrima, natural size. 6 a. Ocecium. 6 b. Ocecial 



orifice. 



