228 PSEUDORONULLIA, A NEW BCHIUROID GENUS, 



Hkdley, C. — Tlie Mollusca of Masthead Reef. Proc. Linn, Soc. N. S. 



Wales, xxxi., 1906, pp.453-479. 

 An Ecological Sketch of Sydney Beaches. Proc. Roy. Soc. 



N. S. Wales, xlix., 1915, pp. 15-77. 

 Ikeda, I. — The Gephyrea of Japan. Journ. Coll. Sci. Univ. Tokyo, xx. 



(4), 1904. 

 On three new and remarkable species of Echiuroids, etc. 



Journ. Coll. Sci. Univ, Tokyo, xxxi. (8), 1907. 

 S.wrrxE-KEXT, W. — Preliminary Observations on a Natural History Col- 

 lection made at Pt. Darwin and Cambridge Gulf. Proc. Roy. Soc. 



Queensland, vi., 1889, pp.219-236. 

 Selenka, E.— Report on Gephyrea. Chall. Rep., xiii., Part 36, 1885. 

 Shipley, A. E. — On a Collection of Echiurids from the Loyalty Islands, 



New Britain, etc. Willey's Zool. Results, iii., 1899, pp.335-353. 

 Su'iter, C. — Die Evertebraten aus d. Samml. d. K. naturw. Ver. Ned. 



Indie. Die Gephyreen. Natuurk. Tijd. v. Ned. Indie, 1., 1891, 



pp. 104-123. 



Gephyrea. Siboga Expedit. Monogr. , 25, 1902. 



Spengel, J. W. — Beitrage zur Kenntniss der Gephyreen, etc. Mitth. 



Zool. Stat. Neapel, i., 1879, pp.357-419. 

 Tosh, J. R. — On the Common Whiting of Moreton Bay. Proc. Roy. Soc. 



Queensland, xvii., 1902, pp. 175-184. 

 Whitelegge, T. — List of the Marine and Freshwater Invertebrate Fauna 



of Port Jackson, etc. Proc. Roy. Soc. N. S. Wales, xxiii., 1889, 



pp, 163-323. 



REFERENCES TO LETTERING. 

 a.g., anal glands (posterior nephridial tubes); b.w.m., body wall of male; 

 c, ccelome; c.c, central cell; ci, cilia; c.carp., coelomic corpuscle; cm., 

 circular muscles; c.p., coelomic prolongations into proboscis; c.u., coelomic 

 opening of uterus; d., dermis; d.b.r., dorsal bloodvessel; e., egg; e.m., 

 epithelium of male; e.m.m., modified epithelium of male; e.m.t., epithelium 

 of male tube; ep., epithelium; g.c, gland cells; g.L, glandular layer; i., 

 intestine; /./., intestinal lumen; i.w., intestinal wall; /., lacuna? in body 

 wall; Lb. v., lateral bloodvessel of proboscis; l.m., l.m. I., l.m. 2., longitudinal 

 muscle; l.n., lateral nerve of proboscis; m., male; m.a., one of the male 

 apertures; m.c, coelome of male; vies., "mesentery'*; m.m., modified body 

 wall musculature in vicinity of a uterine aperture; m.t., male tube (an- 

 drcecium); m.t.c, cavity of male tube; m.t.o., opening of male tube to 

 exterior; m-t.w., wall of male tube; n., nerve; neph., nephrostome of anal 

 tubule; o., ovum; te.s. , oesophagus (pharynx); o.m., oblique (inner circular) 

 muscle; ot\, ovary; p., papilla; p.c, peripheral cell; per., peritoneum; r., 

 rectum; *., setae; s.b., sperm ball; $./., siphonal folds; s.t., siphonal tube; 



