90 PERCY SLADEN TRUST EXPEDITION 
Specific characteristics: 1. Large collar sete with coarsely serrated blades and 
fin-like expansions. 2. Ova incubated in tube. 3. Talon of operculum with large, 
more or less hook-like projections. 
Locality. Several specimens attached to the tubes of Spirobranchus contieri from 
entrance to dock, Suez. 
Some of the setee of the third thoracic segment are, as Caullery and Mesnil (9) point 
out, bladed sickles, not simple capillary ones as stated by Marion and Bobretzki (86). 
There are 9—12 segments in abdomen, each torus consisting of about 20 uncini. 
REFERENCES. 
1. ABILDGAARD, P. E. Schriften der Gesell. natur. Freunde zu Berlin, ix, 1789. 
Barrp, W. “New Tubicolous Annelids in the British Museum.’ Journ. Linn. Soc. Lond. Zool. 
vill. 1864. 
3. Benepict, J. E. “Description of ten species and one new Genus of Annelids from the dredgings 
of the U.S. Fish Com. Steamer Albatross.” Proc. U.S. Nat. Museum, 1x, p. 547, Wash. 1886. 
4. BrrKELEY, M. J. “A short account of...two British Serpule.” Zool. Journ. i, p. 229, 1827, 
5. BERKELEY, M. J. “Observations upon the Dentalium subulatum of Deshayes.” Zool. Journ. v, 
p. 424, 1835. 
6. BuLartnvintte, H. D. pr. Dict. des Sci. Nat. Art. Vers. 1817. 
7. Busy, K, J. “Sabellide, and Serpulide.’ Harriman Alaska Expedition, xi, 1905. 
8. Busy, K.J. “New Serpulids from Bermuda with notes on known forms from adjacent regions.” 
Proc. Acad. Nat. Se. Philad. 1910. 
9. Cautrery, M. and Musnit, F. “Etudes sur la morphologie comparée et la phylogénie des especes 
chez les Spirorbes.” Bull. Se. France et Belgique, 4™° série, xxx, pp. 185238, 1897. 
10. CuHIAJE, St. DELLE. “Memorie sulla storia e notomia degli animali senza vertebre del regno di 
Napoli,” ii and ii, 1825 and 1828. 
11. Cuaparkpr, E. “Beob. tiber Anat. und Entwick. Wirbel.” p. 31, Leipzig, 1863. 
12. Ciaparbpn, E. “Annélides chétopodes du Golfe de Naples.” Mém. Soc. Phys. Geneve, xx, 
with supplement, 1870. 
12 a. — vol. xix, 1868. 
13. Daye, J. G. ‘Powers of the Creator, &e.” 11, p. 250, 1853. 
14. Daupin, F. M. “Recueil de mémoires et de notes sur les especes...de vers, &e.” Bull. Sci. Soc. 
Philom. u, p. 145, Paris, 1800. 
15. Exuurrs, E. “Florida Annelida,’ Mem. Mus. Comp. Zool. Harvard, xv, p. 286, 1887. 
16. Euvers, E. “Die Polychzten des magellanischen und chilenischen Strandes,” 1901. 
17. Euts, J. “An Essay toward a Nat. Hist. of the Corallines and other Marine Productions on the 
Coasts of Great Britain and Ireland,” p. 117, 1755. 
18. Fauve, P. “Sur quelques Serpuliens de la Manche et de la Méditerranée (Serpula vermicularis 
L. and Protula tubularia Mont.).” Compt. Rend. Ass. Fr. Avanc. Sc. Paris, 1909. 
19. Grarp, A. “Notes sur lembryogénie et la développement de la Salmacina dysteri,’ Compt. 
rendus, 1876. 
20. Gmetin, J. F. Systema Nature, ed. XIII. i, 1789. 

