Elements of comparative anatomy (1878) Elements of comparative anatomy elementsofcompar00gege Year: 1878 96 COMPARATIVE ANATOMY. These are— 1) Locomotive Persons (Nectocalyces) : these conform most completely to the Medusa-type, and are united together by twos Fig. 33. Some colonics of Siphonopliora. ADiphyes campanulata. B A group of appendages of the stem of the same Diphyes. C Physophora hydrostatica. A separate nectocalyx of it. E Cluster of female generative buds of Ayalma Sarsii. D a Trunk or axis of the colony, d Air-bladder. m Nectocalyx. c Cavity in nectocalyx, invested by a contr
Elements of comparative anatomy (1878) Elements of comparative anatomy elementsofcompar00gege Year: 1878 96 COMPARATIVE ANATOMY. These are— 1) Locomotive Persons (Nectocalyces) : these conform most completely to the Medusa-type, and are united together by twos Fig. 33. Some colonics of Siphonopliora. ADiphyes campanulata. B A group of appendages of the stem of the same Diphyes. C Physophora hydrostatica. A separate nectocalyx of it. E Cluster of female generative buds of Ayalma Sarsii. D a Trunk or axis of the colony, d Air-bladder. m Nectocalyx. c Cavity in nectocalyx, invested by a contractile membrane, v Canals in the walls of this cavity, o Opening of the nectocalyx. t Bracts (in c represented by tentacles), n Stomach. i Fishing-lines, g Generative organs. (Diphyida)), or, by a larger number, to form a swimming column (Physophorida)), which occupies the end of the stem (Fig. 33, A 0, m D), and which, therefore, takes the lead when the colony is moving, and is directed anteriorly. 2) Nutritive Persons are present in the second division of
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