40 ON THE ANATOMY OF A NEW GEPHYREAN worm. [Jan. 20, 
WORKS REFERRED TO. 
(1) A. Cottry.—“ Gephyreen gesammelt von Herrn Stabsarzt 
Dr. Sander,” in Archiv fiir Naturgeschichte, lvili. p. 197, 
1892. 
(2) Fiscuer.—‘‘ Die Gephyreen des Naturhistorischen Museums 
zu Hamburg,” in Abhandlungen aus dem Gebiete der 
Naturwissenschaften &c., Hamburg, Bd. xii. p. 1, 1895. 
(3) Kurersteiy.— Beitrage zur Kenntniss der Gattung Phascolo- 
soma F. 8. Leuck.,” in Zeitschrift fiir wiss. Zoologie, 
Bd. xii. p. 35, 1862. 
(8a) Kererstern.— Beitrige zur anatomischen und _syste- 
matischen Kenntniss der Sipunculiden,” in Zeitschrift fiir 
wiss. Zoologie, Bd. xv. p. 404, 1865. 
(4) Rovts.—“ Sur le Géphyriens des grands fonds de la mer 
recueillis par le ‘Travailleur’ et le ‘Talisman,’” in Comptes 
Rendus, exxvii. p. 197. 
(5) SrnenKka.— Die Sipunculiden,” in Semper’s ‘ Reisen.’ Wies- 
baden, 1883. 
(6) C. Pu. Sturrer.— Beitrage zu der Kenntnis der Gephyreén 
aus dem Malayischen Archipel,” in Natuurkundig Tijdschrift 
voor Nederlandsch-Indié, Deel xlv. p. 472, 1886. 
(7) Surptey.—‘ On Phymosoma varians,” in Quart. Journ. Micr. 
Seis volypcxxie mess pale O90} 
(8) Lanxesrer —“ Golfingia macintoshu, &e.” Trans. Linn. Soe. 
Lond. 2nd ser., Zool. vol. ii. p. 469, 1885. 
EXPLANATION OF THE PLATES. 
PuateE VI. 
Fig. 1. Theentire animal, magnified about 6; times. A, the anterior muscular part. 
B, the middle thinner portion. C, the bag-like posterior piece. AN., the 
anus. pp. 29, 30.. 
Fig.2. Semi-diagrammatic figure of a dissection, magnified about 13 diam. I, the 
introvert. E, the eye-spots. B.T., the nephridia. H, dorsal vessel. 
D.R., dorsal retractor muscles. V.R., ventral retractors. AN., position of 
anus. G, coiled part of gut. F, straight part. pp. 30, 31. 
Fig.3. Cuticular glands in vertical section. x 290. R.M., radial muscles. 
C, cuticle. L, secretory cells. I, granular contents. p. 30. 
Fig. 4. Hooks from introvert. Surface view. X 154. p. 30. 
Prats VII. 
Fig. 5. Isolated hooks. X 290. F, furrow. p. 30. 
Fig. 6. Transverse section 1 mm. behind the anus. X 53. C.G., cuticular glands. 
R.M., radial musculature. IL.M., longitudinal do. M, muscles attached 
to rectum. G, rectum. 8B.T., nephridia. TT, tentacle cut across. 
H, hooks. J,imtrovert. N.C., ventral nerve-cord and muscles. p. 31. 
Fig. 7. Histology of the retractor muscles (Powell & Lealand 7';-imm., eyepiece A). 
A. Transverse section of dorsal retractor, showing amount of interstitial 
connective between the bundles. 
B. Ditto of ventral retractor, showing almost no intermuscular connective. 
p. 32. 
Fig. 8. Transverse section of tentacle. x 290. B.S., blood-sinus. N, nerve. 
A, ciliated mesial cells. 3B, columnar outer cells. p. 32. 
Vig.9. A. Epithelium of mid-gut. > 290. B. Epithelium of hind-gut. Xx 290. 
p. 33. 
Fig. 10. Transverse section of esophagus. X 290. Part only of the stout muscular 
wall is shown. M, muscular wall. EH, the epithelium thrown into papille. 
p. 32. 
