16 Verm, 
VERMES. 
Koren & Danielssen (38) give an account of their anatomico-histo- 
logical investigations on the Si;punculid(B, especially Sipunculus priapu- 
loides^ pi. xiii. figs. 1-6 ; Phascolosoma loveni^ pi. xiv. figs. 17-21 ; P. 
pis. xiii. fig. 11, xiv. figs. 14 & 16; P. ahyssorum, pi. xiv. 
figs. 25-27 ; P. pallidum, pi. xiv. figs. 22-24. They describe as new : — 
Oiichnesoma. Body small and pear-shaped, proboscis long, anal 
aperture a little in front of the base of the proboscis ; no tentacles or 
vascular system, one retractor. 0. steenstrupi, pi. xv. figs. 28-36 ; 0. 
sarsi, pi. xv. figs. 37-40. 
Tylosoma. Body cylindrical, densely covered with papillm, anterior 
part truncated, broad, scutiform, having in the centre a small promi- 
nent round mouth ; no proboscis, no tentacles, no vascular system. T. 
lutkeni, pis. xiii. figs. 12, 13 A, b, & c, xiv. 16. 
Priapuloides. Anterior part of body forms the proboscis ; mouth 
with teeth ; anal aperture in posterior extremity, and on each side of it 
a long cylindrical appendage (? gill) covered with vesicles ; the genital 
pores below, and on the sides of the anus. P. typicus, pi. xvi. figs. 10-14. 
The following forms are also described; — Echiurus {Thalassema 
vulgaris, Savigny ; E. lutheni, ? Dies ; Bonellia viridis, Rolando j Phas- 
colosoma eremita, Sars ; Phascoloma {Sipunculus) margaritaceum, Sars ; P. 
harveyi, Forbes; P. (S.) papillosum, Thomps.; P, (S.) vulgare, Blaiuvillo; 
and P. {S.) stromhi, Montagu. 
ANNULATA. 
39. Barrois, J. Sur quelques points de I’embryologie des Anndlides. 
C. R.lxxxv. pp. 297-299. 
40. Butschli, O. Entwickelungsgeschichtliche Beitrage iii. Zur 
Kenntniss des Furchungs-processes und der Keimblatterbildung bei 
Nephelis vulgaris, Moquin Tandon. Z. wiss. Zool. xxix. pp. 239-252, 
pi. xviii. 
41. Duns, J. On an unnamed Palaeozoic Annelid. P. R. Soc. Edinb. 
1876-77, pp. 352-359, pi. iv. 
42. Greeff, R. Untersuchungen fiber Alciopiden. Nov. Acta L.-O. 
Ak. Naturf. xxxix. pp. 33-132, pis. ii.-vii. 
43. Grin NELL, G. B. Notice of a New Genus of Annelids from the 
Lower Silurian. Am. J. Sci. (3) xiv. p. 229. 
44. Grube, E. Anneliden-Ausbeute S.M.S. Gazelle. MB. Ak. Berl. 
1877, pp. 509-554. 
45. Harting, j. E. On the occurrence in England of Dutrochet’s 
Land Leech (Trochetia suhviridis). Zool. (3) i. pp. 615-523. 
46. Hatsciiek, B. Beitrage zur Eutwickelungsgeschichte und Mor- 
phologic der Annelidon. SB. Ak. Wien, Ixxiii. [1876] pp. 443-461, 
pi. i. 
47. Hensen, V. Die Thatigheit des Regenwurms {Lumbricus terrestris, 
L.) ffir die Fruchtbarkeit des Erdbodens. Z. wiss. Zool. xxviii. 
pp. 354-364. 
