8 Verm, 
VERMES. 
GEPHYEEA. 
41. ANDREiE, J. Zur Anatomie und Histologie des Sipunculus nudus^ L. 
Z. wiss. Zool. xxxvi. pp. 201-268, pis. xii. & xiii. Zool. Anz. iv. 
pp. 477-481. 
42. Danielssen, D. C., & Koren, J. Den Norske Nordhavs-Expedi- 
tion, 1876-1878. Iil. Zoologi. Gephyrea. Christiania: 1881, large 
4to, pp. 60, 6 pis., 1 map. [Norwegian and English in parallel 
columns.] 
43. Drasche, R. TJeber eine neue Echiurus-Art aus Japan, nebst 
Bemerkungen iiber Thalassema erytlirogrammon, Leuckart, von der 
Insel Bourbon. Verb. z.-b. Wien, xxx. pp. 621-628, pi. xx. 
44. Horst, R. Hamingia glacialis^ sp. n., eine borstenlose Echiure. 
Zool. Anz. iv. pp. 448-450 ; and Niederl. Arch. Zool. Suppl. i. 2, 
pp. 12, 1 pi. 
45. Lankester, E. R. On Thalassema neptuni, Gaertner. Zool. Anz. iv. 
pp. 350-356. 
46. Rietsch, M. I^tudes sur quelques points de Tanatomie du Stern- 
aspis scutata. 0. R. xcii. pp. 926-929, 1066-1069 ; Ann. N. H. (5) 
vii. pp. 426-428, 493-495. 
47. Sluiter, C. Uebor die Segmentalorgane und Geschlechtsdrusen 
einiger Sipunculiden des Malay’schen Archipels. Zool. Anz. iv. 
pp. 623-527. 
48. Vejdovsky, E. Untersuchungen iiber die Anatomie, Physiologic, 
und Entwickelung von Sternaspis. Denk. Ak. Wien, xviii. pp. 33-90, 
10 pis. (also separately). 
49. Wilson, E. B. The Origin and Significance of the Metamorphosis 
of Actmotrocha. Q. J. Micr. Sci. xxi. pp. 202-218, pis. xiv. & xv. 
Danielssen & Koren (42) give a full account of their new genera and 
species [see Zool. Rec. xvii. Verm. p. 9]. 
Horst describes (44) the homologue of the secondary gut of Echiurus as 
being represented by a canal which is developed from the outer wall of 
the body, and connected posteriorly with the hind gut. He is unable to 
accept GreePs view of the structure and function of the anal tubes ; as 
is also Lankester (45), who has detected very minute pores. The latter 
describes the liquid of the coelom as containing corpuscles impregnated 
with haemoglobin, and the genital pouches of forms sexually mature as 
extending over three-fourths of the length of the body. 
Vejdovsky (48) gives a very full account of Sternaspis^ describing the 
habits ; the fore- and hind-body ; and the dorsal pre-anal tufts of spirally 
coiled gill-filaments. There are no integumentary unicellular glands, and the 
setae exhibit a peculiar arrangement. The brain presents distinct bi-lateral 
symmetry, and the nervous system generally is intermediate between 
that of others Gephyrea and that of Chcetopoda. There would appear 
to be a pair of lateral vessels for each segment of the body. The gene- 
