VerriU.] 338 



figs. 2 to 7 ; Clark, Mind In Nature, p. 57 and 178, figs. 28, 106, 107, 

 1865. 



This species occurs quite commonly on the shores of Long Island 

 Sound, in rocky places, near New Haven, and along the whole coast 

 of Connecticut. It is found both under stones and in crevices of 

 ledo-es, but is usually of small size, if compared with specimens from 

 Maine and Grand Menan, and is ahnost always of a dull yellowish 

 brown color. 



Actinia (?) rapiformis Lesueur. 



I have been informed that a species answering to the description 

 of this has been found on the coast of Connecticut, in sandy places, 

 but have seen no specimens. 



Halocampa albida (Ag. sp.) Yerrill. 



H. albida A. and E. C. Agassiz, 1. c. p. 16, fig. 15. 

 Abundant at Nantucket on sandy or muddy shores. 



Ilyauthus (?) neglectus Leidy sp. New Jersey coast, in mud. 



The following species can not, perhaps, be said to have been found 

 within the proper limits of this fauna, but since a species of Cyanea^ 

 which I can not distinguish in any way from C. arctica, although it 

 is probably the same that has been named C. fulva by Agassiz, oc- 

 curs abundantly on the whole southern coast of New England, it is 

 probable that its parasite, Peachia, will be found also, when carefully 

 sought for. 



Peachia parasitica Verrill. 



Bicidium parasitic um Agassiz; Verrill, Revision of Polyps, in Me- 

 moirs Boston Soc. N. H., Vol. I., p. 31, plate i, figs. 14, 15 ; A. and E. 

 C. Agassiz, in Seaside Studies in Natural History, p. 15, fig. 14, 1865. 



Further examinations of this curious species have led me to believe 

 that it is not generlcally distinct from the typical species of Peachia. 



The minute suckers of the sides are apparently of precisely the 

 same nature, the basal opening is the same in each, and the structure 

 of the walls, tentacles and disk, is nearly identical with that of P. 

 tripliylla Gosse, while the lobes about the mouth do not differ more in 

 form from those of P. hastata, than the other species differ among 

 themselves. The chief peculiarity is found in its habit of living 

 among the mouth folds of Cijanea arctica. But as the habits of some 

 of the European species are still unknown, this may not even prove 

 an exception. A species of Peachia has even already been indicated 

 as parasitic on McdustB in the seas of Northern Europe. It may also 

 be that our species does not live exclusively in this situation, its full 

 history and embryology being still unknown. 



