FIGURE 2
(A) Transverse section of tail on A — A of Fig. 1, C. Circ. mm. — Circular muscles, Coel. — Coelom, Conn. t. — Connective tissue, Dig. epi. — Glandular epithelium, Dors. B.V. — Dorsal blood vessel, Epid. — Epidermis, Ga, V. — Gastric vessel, Int. lu. — Lumen of intestine, Long. mm. — Longitudinal muscles, N.C. — Ventral nerve cord, Nev. B.V. — Neural blood vessel, Obl. mm. — Oblique muscle, Perit. — Peritoneum, Vent. B.V. — Ventral blood vessel.
(B) Vertical longitudinal section of proboscis, 0.5 mm. to left of midline. Bra. — Brain, B.V. — Blood vessels, Com. — Circum - oesophageal commissure, Dphm.1 — First septum, H. Coel. — Head coelom, Mth. — Mouth, Nuch. P. — Nuchal pore, Oes. — Oesophagus, mm. P. ret. — Retractor muscle of proboscis (gular membrane). Other abbreviations as for Figure (A).
(C) Transverse section of branchial region on B — B of Fig. 1, C. Br.8 — Gill VIII, Chloro. tiss. — Chlorogogenous tissue, Eff. aff. br. a. — Efferent and Afferent branchial arteries, Lat. B.V. — Lateral blood vessel, Noto.14 — Notopodium XIV, No. chaet. — Notopodial chaeta, Ooc. — Oocyte, St. lu. — Lumen of stomach. Other abbreviations as for Figure (A).