[739] INVERTEBRATE ANIMALS OF VINEYARD BOUND, BTO, 146 



EDWABDSIA FARINACEA Verrill. (p. 510.) 



American .loin-Hill of Science, vol. xlii, p. II*, MIC,. 



Oil' Gay Head, 19 fathoms; Case.o I5ay, 10 to 70 fatlm 

 Ftindy, 8 to 90 fathoms. 



EDWARDSIA LINEATA Verrill, sp. nov. (p. 497.) 



I>ody cylindrical, elongated, covered over the base and sides with ,i 

 elirty, brownish, slightly rough and wrinkled epidermis, except anterio 



below the tentacles, where it is smooth, translucent, and usually 

 eight impressed, longitudinal, flake- white lines, showing through. Ton t a - 

 cles, 24 to 30, or more, in the larger specimens, slender, tapering, obi 

 white or pale flesh-color, each with a flake-white, longitudina I line ;\\n\\^ 

 the inner side. Disk, with a white circle around the mouth, and often 

 with 8, or more, radiating, white lines, extending to the base of the 

 inner tentacles ; border of the mouth sometimes pale-red; naked part 

 of column pale flesh-color, often with a circle of white below the b 

 of the tentacles, and usually with eight oblong or fusiform flake-white 

 spots between the longitudinal impressed lines. 



Length, 25 mm to 35 mm ; diameter, 2.5 lmn to 3 mm . A very young speci- 

 men had 18 slender, equal, long tentacles, each with a median longi- 

 tudinal line of white on the inside; disk with 6 radiating lines of 

 white ; naked part of the column with 6 impressed white lines, and 

 with 6 oblong, flake-white spots between them. Breadth* across the 

 expanded tentacles, 3 mm . 



This species is remarkable for not having, in any of the specimen* 

 found, a naked basal area, nor any true disk for attachment, thus differ- 

 ing both from Phellia and the other species of Edwardsia. This may be 

 due. to its peculiar habit of nestling in the crevices and interstices 

 between rocks, ascidians, worm-tubes, etc. 



Off' Watch Hill, Rhode Island, 4 to 5 fathoms, in cavities in and 

 beneath Astrangia, etc. ; Vineyard Sound and oif Gay Head, 6 to 12 

 fathoms, among ascidians, annelid-tubes, etc., abundant. 



Arachnactis brachiolata A. Agassiz. (p. 451.) 



Proc. Boston Soc. Nat. Hist., vol. ix, p. 159, 1862; Boston Journal of Nat, Hisr.. 

 vol. vii, p. 525, 1863 ; Verrill, Memoirs Boston Soc. X. H., p. 33 ; Proceedings, 

 vol. x, p. 343. 



Mr. A. Agassiz has recently ascertained that this is only a larval torm 

 of some species of Edwardsia. As it had already developed 16 tenta- 

 cles, it must belong to one of the species having numerous teiitarles 

 when adult. 



Peachia parasitica Verrill. 



Proc. Boston Soc. Nat. Hist., vol. x, p. 338, 1866; lik-Mium parnxitintm Agassiz, 

 Proc. Boston S. N. H., vol. vii, p. 24, 1859; Verrill, Revision of Polyps, in 

 moirs Boston S. N. H., vol. i, p. 31, Plate 1, figs. 14, 15, IrilM ; A. and Mrs. E. C. 

 Agassiz, Sea-Side Studies, p. 15, fig. 14, 1865. 



Cape Cod to Bay of Fundy, on Cyanea arctica ; Eastport, Maine, buried 

 in gravel at low-water mark (two specimens, of very large size). 1 am 



