38 HOLOTHURIOIDEA. 
Cucumaria elongata, Diib. § Kor, Vet-Akad. Hdlg. 1844 (1846), 
p. 301, pl. iv. fig. 14, & pl. xi. fig. 56; Sars, Nyt Mag. x. (1859) 
p. 76, pl. il. figs. 44-48; Marenzeller, Verh. zool.-bot. Ges. Wien, 
xxlv. (1874) p. 306; Zhéel, Chall. Rep. Hol. (1886) p. 106. 
Holothuria fusiformis, Forbes § Govdsir, Atheneum, 1839, no. 618, 
p- 647; Forbes, Brit. Starf. (1841) p. 219; Norman, Rep. Brit. 
Assoc. 1868 (1869), p. 316. 
Body elongated, sometimes very narrow, and rather frequently 
a good deal narrower posteriorly than anteriorly. Podia not in 
regular double rows at ends of body, varying somewhat in the extent 
to which they may be retracted after death. 
Deposits irregular in form, but often of large size and sufficiently 
numerous to make the body-wall stiff. 
Of all sizes, up to six inches, as C. montagui is probably only a 
variety. 
Distribution, Eastern side of North Atlantic, from Spanish coast 
to within Arctic circle; White Sea (?); Mediterranean. 10 to 
50 fms. 
a-e. Plymouth. 
J. Weymouth. W. Thompson, Esq. 
4. Cucumaria lactea. (Plate III. fig. 2.) 
ahaa lactea, Forbes § Goodsir, Atheneum, no. 618, 1839, 
. 647. 
Mtothucis brunnea, Thompson, Ann. § Mag. v. (1840) p. 100. 
Ocnus lacteus, Forbes, Brit. Starf. (1841) p. 251; Thompson, Nat. 
Hist. Irel. iv. (1856) p. 448 ; Lampert, Seewalzen, (1885) p. 131. 
Ocnus brunneus, Forbes, op. cit. p. 229 ; Thompson, op. cit. p. 443. 
Cucumaria lactea, Diib. § Kor. Vet.-Akad. Hdlg. 1844 (1846), p. 297, 
pl. iv. figs. 3-7, pl. xi. fig. 55; Sars, Norg. Ech. (1861) p. 101; 
th a Cat. Crust. (1882) p. 51; Théel, Chall. Rep. Hol. (1886) 
Guemenea brunnea, Hérouard, Arch. Zool. expér. vii. (1889) p. 682. 
Holothuria badotrie, Dalyell, Powers, i. (1851) p.72, pls. xiii. & xiv. 
In many points resembling C. planci. 
Body pretty regularly cylindrical; skin rather stiff and rough, 
white or brown in colour. Podia in a single zigzag row in each 
ambulacrum, feebly retractile. 
Deposits not unlike those of C. planci, but the holes of the disks 
larger and the knobs less numerous. 
Not much more than an inch long and frequently smaller. 
Distribution. British seas, and West Norway. 0-50 fms. 
a-d. Plymouth. 
5. Cucumaria hispida. (Plate IV. fig. 1.) 
Eupyrgus hispidus, Barrett, Ann. § Mag. xx. (1857) p. 46, pl. iv. 
fig. 1. 
Eehinocucumis typica, Sars, Forh. Vid. Selsk. Christ. 1858 (1859), 
p- 174; ed. Norg. Ech. (1861) p. 102, pl. x. figs. 11-20; Semper, 
