The entire shell, seen from the base of the aboral pole (dorsal and ventral valve connected by delicate teeth, catching into one another). Fig. 4. _Coeloplegma murrayanum_, n. sp., × 100 1757 _h_, The two hemispherical inner valves of the shell, seen from the right side; _n_, the central nucleus inside the central capsule; _d_, the astropyle; _g_, the galea; _t_, the nasal tube, arising from its base; _m_, its mouth; _p_, the phæodium, which is partly thrown out by the nasal openings, filling up the galea and nasal tube. Fig. 5. _Coeloplegma murrayanum_, n. sp., × 200 1757 _h_, The two hemispherical inner valves of the shell and the enclosed central capsule, seen from the oral side; _d_, the radiate operculum of the astropyle, seen in the frontal fissure between the two valves; _n_, the nucleus; _k_, the crystals; _g_, galea; _g_^1-_g_^5, the styles arising from the galea; _t_, nasal tube; _m_, mouth of it. Fig. 6. _Coeloplegma murrayanum_, n. sp., × 600 1757 Oral part of a central capsule, in profile. _o_, Opening of the proboscis; _d_, radiate operculum of the astropyle, which gives rise to the proboscis; _e_, the outer, _i_, the inner membrane of the capsule; _k_, groups of crystals; _n_, nucleus. Fig. 7. _Coeloplegma murrayanum_, n. sp., ×1000 1757 Three single groups of crystals, taken from the central capsule. Fig. 8. _Coeloplegma murrayanum_, n. sp., × 300 1757 One inner valve of the shell, in profile. _h_, hemispherical valve; g, galea; _g_^1-_g_^5, the tubes arising from it; _t_, rhinocanna or nasal tube; _m_, its mouth; _b_, frenulum. Fig. 9. _Coeloplegma murrayanum_, n. sp., × 400 1757 _g_, The galea; _t_, rhinocanna of one inner valve; _m_, its mouth; _p_, phæodella filling up both the galea and the mouth of the rhinocanna. _g_^1-_g_^5, the styles arising from the galea; _s_, sieve-plate, which separates the cavity of the galea from the hemispherical valve (_h_). View in profile. Fig. 10. _Coeloplegma murrayanum_, n. sp., × 300 1757 An anchor-pencil of the outer shell. Fig. 11. _Coeloplegma murrayanum_, n. sp., ×1000 1757 A single anchor-thread of a pencil. Fig. 12. _Coeloplegma murrayanum_, n. sp., × 300 1757 Terminal branches of a style. Fig. 13. _Coeloplegma murrayanum_, n. sp., ×1000 1757 A single terminal branch of a style. [Illustration: (FAR-ÖER-CHANNEL) COELOPLEGMA MURRAYANUM.] PLATE 128. LEGION PHÆODARIA. Order PHÆOCONCHIA. Family COELOGRAPHIDA. Fig. 1. _Coelospathis ancorata_, n. sp., × 50 1754