PLATE CXXVI.
P ig.
1. Winged bristle of Loimia Montagui,M.cl. X oc. 4, obj. A, with draw-tube.
1 a. Hook, x oc. 4, obj. D.
1 b. Hook of Loimia medusa, Sav., from the Mediterranean. X oc. 4, obj. D.
2. Middle hook of Thelepus setosus, De Quatrefages. X oc. 4, obj. D, with draw;-tube.
2, 2 a and 2 a'. Bristles of Nicolea venustula, Montagu. X oc. 2, obj. D.
2 b and 2 b'. Hooks, x 700.
2 b . Hook (female—arctica). X oc. 4, obj. D, with draw-tube.
2 V". Hook of a larger type, x oc. 4, obj. D.
2c. Anterior hook from “ Porcupine.” X oc. 4, obj. D.
2 c'. Posterior hook from same example. X oc. 4, obj. D.
2 d. Anterior hook from another small example. X oc. 4, obj. D, with 2-in. draw-tube.
4. Broadly winged bristle of Laphania Boeclci, Malmgren. x oc. 4, obj. F.
4 a. Anterior hook, x oc. 4, obj. F, with draw-tube.
4 b. Posterior hook. X oc. 4, obj. F, with draw-tube.
5. Winged bristle of Laphania, variety A. X oc. 4, obj. D.
6. Winged bristle of Thelepus cincinnatus var. Andreanae, Mcl.
6 a. Hook from Berwick Bay. X oc. 2, obj. D.
6 b. Hook from Canada. X oc. 2, obj. D, with 2-in. draw-tube.
6 c. Anterior hook of Thelepus, from Greenland. X oc. 2, obj. D, with 2-in. draw-tube.
6 d. Posterior hook of Thelepus from Greenland. X oc. 2, obj. D, with 2-in. draw-tube.
7. Winged bristle of Streblosoma Bairdi, Malmgren. x oc. 2, obj. D.
7 a. Hook. X oc. 4, obj. F.
8. 8' and 8". Broadly winged almost flag-like posterior bristles of Lepraea lapidaria, L.
X oc. 4, obj. D.
8 a. Anterior winged bristle with double enlargement. X oc. 4, obj. D.
8 b. Hook. X oc. 4, obj. D, with draw-tube.
9. Bristle, with very narrow wings, of Poly cirrus medusa, Grube. x oc. 2, obj. D.
9 a. Simple bristle, Bressay Sound. X oc. 4, obj. F, with draw-tube.
9 b. Hook, x oc. 4, obj. F.
10. Winged bristle of Proclea (Leeena) Graffi, Langerhans. X oc. 4, obj. D, with 2-in.
draw-tube.
10 a. Winged serrated bristle. X oc. 4, obj. D, with 2-in. draw-tube.
10 b. Anterior hook, x oc. 4, obj. D, with 2-in. draw-tube.
10 c. Posterior hook. X oc. 4, obj. F.
11. Hook of Polydora caeca, (Ersted. x oc. 4, obj. F.
12. Hook of Pygospio seticornis, (Ersted. x 350.