. The anatomy of Lottia gigantea Gray. Acmaeidae; Lottia gigantea Gray. 28 WALTER K. FISHER, presently to be described. However, the blood, circulating through the membrane between kidney and gonad, is directly under the renal epithelium, and is thus subject to its action. A very small portion does pass into the dorsal vascular network, direct from the gonad, while some may reach the vessels of the visceral circulation and thence arrive at the kidney. I have not been able to demonstrate rAe^S. Fig. K. The gonad has been removed from Fig. J, to show the manner in which blood from gonad reaches
. The anatomy of Lottia gigantea Gray. Acmaeidae; Lottia gigantea Gray. 28 WALTER K. FISHER, presently to be described. However, the blood, circulating through the membrane between kidney and gonad, is directly under the renal epithelium, and is thus subject to its action. A very small portion does pass into the dorsal vascular network, direct from the gonad, while some may reach the vessels of the visceral circulation and thence arrive at the kidney. I have not been able to demonstrate rAe^S. Fig. K. The gonad has been removed from Fig. J, to show the manner in which blood from gonad reaches median sinus and mantle. B. S buccal sinus, Med. S median sinus emptying posteriorly into mantle circulation at M, cavity of right kidney, X, X' membrane separating gonad from right kidney, composed of coelomic epithelium and renal epithelium fused, the blood sinuses including the median sinus, occupying space between these two epithelia, Z, Z' line of attachment of above membrane to muscular body wall, Y, Y' point where vessels leave gonad to enter membrane. this, however, as it is beset with considerable difficulty. In conclusion it might be well to state that the entire circulation of the gonad is closed, and that the space about the gonad is not a primary body- cavity or pseud-haemal sinus as Miss Willcox believed to be the case in Acmaea fragilis, but almost without doubt appertains to the secondary body cavity or 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 Fisher, Walter Kendrick, 1878-. Jena : G. Fischer
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherjenag, bookyear1904
