. The crayfish : An introd. to the study of zoology. --. Crayfish; Zoology. THE CEPHALOTHORAX. 151 pleurobranchia (fig. 4, plb. 14) is attached; and in front of this, it is connected, by a narrow neck, with an elongated triangular piece, which takes a vertical direction, and lies in the fold which separates the posterior thoracic somite from the next in front. The base of this. Fig. 38. — Astacns fimiatiUs.—The mode of connexion between the last thoracic and the first abdominal somites ( x S). a, L-shaped bar ; cj)e, carapace ; cxp. 14, coxopodite of the last ambulatory leg-; plb., place of at
. The crayfish : An introd. to the study of zoology. --. Crayfish; Zoology. THE CEPHALOTHORAX. 151 pleurobranchia (fig. 4, plb. 14) is attached; and in front of this, it is connected, by a narrow neck, with an elongated triangular piece, which takes a vertical direction, and lies in the fold which separates the posterior thoracic somite from the next in front. The base of this. Fig. 38. — Astacns fimiatiUs.—The mode of connexion between the last thoracic and the first abdominal somites ( x S). a, L-shaped bar ; cj)e, carapace ; cxp. 14, coxopodite of the last ambulatory leg-; plb., place of attachment of the pleurobranchia ; st. XV, sternum, and t. XVf tergum of the first abdominal somite. piece unites with the epimeron of the penultimate somite. Its apex is connected with the anterior end of the horizontal arm of an L-shaped calcified bar (fig. 38, a), the upper end of the vertical arm of which is firmly, but moveably, con- nected with the anterior and lateral edge of the tergum of the first abdominal somite (f. XV.). The tendon of one. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Huxley, Thomas Henry, 1825-1895. London : K. Paul, Trench, Trubner
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1896
