172 FAUNA OF NEW ENGLAND. 



Cashe's Ledge. 



Off Cape Ann, 25 to 80 fathoms; Massachusetts Bay, 35 to 48 

 fathoms; off Cape Cod, 70 fathoms; on and near Stellwagens 

 Bank, 25 to 60 fathoms, August (Mayer and Balch). 



Issa ramosa Verrill and Emerton. 



Verrill and Emerton in Verrill, Amer. Journ. Sei., 1881, ser. 3, 

 vol. 22, p. 301. [south of Marthas Vineyard.] Verrill, Trans. 

 Conn. Acad., 1882, vol. 5, p. 547, pi. 58, figs. 36, 36a. 



South of Marthas Vineyard, 100 to 130 fathoms. 



Palio lessonii (d'Orbigny). 



Bergh, Verh. Zool.-Bot. Ges. Wien, 1881, vol. 29, p. 602. 

 Polycera lessonii d'Orbigny, Mag. de Zool., 1837, vol. 7, art. 8, 



cl. 5, p. 5, pi. 105. " ENVIRONS DE LA RoCHELLE [FrANCe]." 



Gould, Inv. Mass., 1870, p. 226, pi. 17, figs. 242-248. 

 Doris illuminata Gould, Inv. Mass., 1841, p. 4. 



Me. — Common in Casco Bay and Bay of Fundy, low water to 

 20 fathoms (Verrill). 



Mass. — Craigie's Bridge and Aspinwall's shipyard (Gould) ; 

 Cohasset, on kelp, Nov. (Owen Bryant). 



R. I.— Watch Hill, 3 to 6 fathoms. 



Conn. — Savin Rock, near New Haven, and off south end, 4 to 5 

 fathoms (Verrill). 



Polycerella emertoni Verrill. 



Verrill, Proc. U. S. Nat. Mus., 1880, vol. 3, p. 387. " Wood's 

 HoLL [, Mass.] *** New Haven, Conn.* ** Newport, R. I." 

 Verrill, Trans. Conn. Acad., 1882, vol. 5, p. 548. Bergh, Verh. 

 Zool.-Bot. Ges. Wien, 1884, vol. 33, p. 162, pi. 8, figs. 9-19; pi. 9, 

 figs. 1-6 (anat.). \ 



Mass. — Woods Hole, among eel-grass, Aug. and Sept. 

 R. I. — Newport, on filamentous algae, July and August (Verrill). 

 Conn. — New Haven, on hydroids from piles of Long Wharf,, 

 Oct. (Verrill). 



