634 
ZOOLOGICAL LITERATURE. 
Steenstrupia cranoides^ Haeck. 1. c. p. 339. Medusoid. 
JBougainvillia maniculata, Haeck. 1. c. p. 340. Medusoid. 
Parypha microcephalaj A. Agassiz, 1. c. p. 195, San Francisco. 
Thamnocnidia tuhdaroides^ A. Agassiz, 1. c. p. 196, San Francisco. 
Gemmaria cladophora, A. Agassiz, /. c. p. 184, dgs. 307-310, Nahant. 
Zygodactyla crassa, A. Agassiz, /. c. p. 100, figs. 167-158, Nahant. 
SERTULARIDiE. 
Van Beneden (1. c.) describes and figures the following known species : — 
Campamdaria gelatinosa (prob. the Sert. longisshna of Pallas), p. 153, pi. 14. 
figs. 11-14 ; C. dichotoma (S. Wright) = Gonothyrcea loveni (Alim.), p. 150, 
pi. 16. figs. 1-4 j C: lacerata ( Johnst.), p. 159, pi. 15. figs. 6-13j Clythia 
{Campamdaria) volubilis= Camp, johnstoni (Aid.), p. 106, pi. 14. figs. 1-10; 
Campamdina tmuis (Van 'B.)=.Laomedca acuminata (Aid.), p. 174, pi. 13; 
SerUdaria cupressina (Linn.), p. 178, pi. 10 ; S. rugosa (Linn.), p. 183, pi. 17. 
figs. 1-8 ; Thoa halecina (Linn.), p. 184, pi. 18 ; and Dynamena pumila 
(Linn.), p. 186, pi. 17. figs. 9, 10. 
Mucope (Ohelia) diaphana (Agass.). The development of this species is 
described and figured by A. Agassiz, 1. c. pp. 83-85, figs. 115-125. 
Lafoca calcarata (A. Agass.). The development of this species is described 
and illustrated by Agassiz, l.c. pp. 122-120, figs. 184-194; as also that of 
Mclicertum campanula (Esch.), 1. c. p. 131, figs. 202-214. 
Ilincks (1. c. p. 299) records tho occurrence of Gonothyrcca gracilis (Sars) 
on the Irish coast (Birterbuy Bay). 
Cuspidclla, g. n., Hincks, 1. c. p. 298. {Campanxdaridcc.) Ilydrothecae C)'^- 
lindrical or subcylindrical, sessile on a delicate creeping stolon, with a conical 
operculum, composed of many pieces. Polypites cylindrical, with a single ver- 
ticil of filiform tentacles. Beproduction unknown. C. humilis, sp. n., Hincks, 
Z. c. p. 298, on the stems of zoophytes. North Wales, Yorkshire, Northum- 
berland, Shetland, and Connemara. 
Ophiodes, g. n., Hincks, Z. c. p. 421, pi. 14. (Ilalecidce.). Hydrocaulus 
simple or branched, rooted by a creeping stolon. Hydrothecse vase-shaped, 
terminal ; polypites not retractile within the calycle ; the body slightly con- 
stricted a little below the base of the tentacles ; tentacles in a single verticil, 
muricate, webbed for about a quarter of their length, and surrounding a 
conical proboscis ; tentaculoid organs borne singly on the hydrocaulus (near 
the calycles) and on the stolon, highly extensile, protected at the base by a 
small chitinous cup, and terminated at the upper extremity by an enlarged 
capitulum, armed with thread-cells. Beproduction unknown. O. mirahilis, 
sp. n., Hincks, Z. c. p. 422, on weed in Swanogc Bay, Dorset. 
New species : — 
Laomedea rigida, A. Agassiz, Z. c. p. 93, San Francisco ; L. gigantea, A. 
Agass. Z. c. p. 94, brackish water, Boston Harbour, growing to 15-20 inches 
in height; L. pacifica^ A. Agass. ibid., San Francisco, another gigantic 
species. 
Campamdaria clongata^ Van Beneden (^vdh.~Laomedea fragilis, Hincks), 
Z. c. p. 104, scarcely visible to the naked eye. 
Campamdaria Jlahdlata, Ilincks, Z. c. p. 297, Tenby ; C. gigantea^ Hincks, 
ibid., Lamlash Bay. 
