PHYLLOPHORUS. 47 
Body elongated, constricted at either end, with a thin, almost 
transparent wall: the five longitudinal muscular bands quite appa- 
rent. Twenty tentacles, arranged in pairs, alternately smaller and 
larger. Very little order in the disposition of the podia, which are 
small and by no means closely packed. Tables generally distributed 
in the body-wall, but not numerous ; characterized chiefly by the 
teeth at the top of the spire. 
Colour pale brown in spirit. 
Two to four inches long, and nearly half as wide in the middle 
of the body. 
Distribution. Both sides of Atlantic, as far south as British Isles 
and Florida Reef; Arctic Ocean (White Sea). 65-70 fms. 
a, The Minch. J. Gwyn Jeffreys, Esq. 
b-d. Firth of Lorn, 60-70 fms. J. Murray, Esq. 
2. Phyllophorus drummondi. (Plate V. fig. 4 & Plate VII. fig. 4.) 
Holothuria drummondii, Thompson, Ann. § Mag. v. (1840) p. 100. 
? Cucumaria communis, Forbes, Brit. Starf. (1841) p. 217. 
Cucumaria drummondii, zd. ¢. ec. p. 228; Thompson, Nat. Hist. Irel. 
iv. (1856) p. 443. 
Thyone portlockii, 7d. t. e. p. 238. 
? Holothuria fusus, Oersted, De reg. mar. (1844) p. 74 (fide Dib. § 
Kor.). 
Thyonidium commune, Diib. § Kor. Vet.-Akad. Hdlg. 1844 (1846), 
p- se, pl. iv. figs, 18-23, pl. xi. tig. 51; Lampert, Seewalzen, (1885) 
CLG: 
i wana drummondi, Gray, Brit. Rad. (1848) p. 11. 
Thyonidium drummondi, Sars, Norg. Ech. (1861) p. 110; Théel, 
Chall. Rep. Hol. (1886) p. 143. 
Phyllophorus drummondii, Ludwig, Klass. u. Ordn. (1891) p. 347. 
? Thyonidium dubeni, Norman, Rep. Brit. Assoc. 1868 (1869), p. 317. 
Semperia drummondii, Héroward, Arch. Zool. expér. vii. (1889) 
p- 688. 
Body elongated, tapering sometimes slightly posteriorly ; wall, in 
spirit, somewhat wrinkled, sometimes marked by longitudinal 
grooves, much thicker than in P. pellucidus. Tentacles somewhat 
irregular in disposition, the smaller not always arranged in pairs, 
all of a deep violet colour. The podia more numerous than in 
P. pellucidus, best developed on the ventral surface, pretty regularly 
disposed along the ambulacra. 
Colour of body creamy or white. 
May be more than five inches long, but is not nearly as broad in 
the middle as P. pellucidus. 
Distribution. Kast side of North Atlantic from British Channel to 
Norway. To 80 fms. 
a, 6. Off Kerrera, 20 fms. J. Murray, Esq. 
ce. Firth of Lorn, 70-80 fms. J. Murray, Esq. 
d, e. Cornwall. 
