. Forms of animal life; being outlines of zoological classification based upon anatomical investigation and illustrated by descriptions of specimens and of figures . rom behind the arterial trirnks. Underneaththese structures the recurrent laryngeal nerve passes to thelarynx. t. Thyroid proper, of which the glandular masses just spoken ofmay be considered as divarications. It is placed just inter-nally to the jugular vein. The Thymus is not seen in thisfigure, lying far back as it does near the angle of the Ecker^s Icones Physiologicae, tab. vi., fig. 5; Remak,Entwickelungsgeschichte d


. Forms of animal life; being outlines of zoological classification based upon anatomical investigation and illustrated by descriptions of specimens and of figures . rom behind the arterial trirnks. Underneaththese structures the recurrent laryngeal nerve passes to thelarynx. t. Thyroid proper, of which the glandular masses just spoken ofmay be considered as divarications. It is placed just inter-nally to the jugular vein. The Thymus is not seen in thisfigure, lying far back as it does near the angle of the Ecker^s Icones Physiologicae, tab. vi., fig. 5; Remak,Entwickelungsgeschichte der Wirbelthier, tab. viii., a.; Kolliker, Entwickelungsgeschichte, p. 391. u. Left jugular vein passing down to receive the subclavian, andthereby constitute the left cava of that side. For the continuity of the lymphatic vessels with the various serouscavities of the body, see V. Recklinghausen, Handbuch derLehre von den Geweben, herausgegeben von S. Strieker,ii. Lieferung, 1869, p. 223; Virchows Archiv., 1863, Bd. 26,p. 172; Dybkowsky, Schweigger-Seydel, Dogiel, and Ludwigin Ludwig^s Arbeiten aus der Physiologischen Anstalt zuLeipzig, 1867. PLATE Cellar Slug, Limax Flavus. PLATE IV. Cellar Slug (Limax Flavus s. Variegatiis), Dissected so as to show its digestive, circulatory, respiratory, nervous, andreproductive systems. The muscular envelope has been separated from the footproper along the left side^ and turned over to the right, togetherwith the shield-shaped mantle and the organs it overlies. Thebuccal mass and nerve collar, together with the salivary glands,have been displaced a little to the left, on which side of the animalsbody the stomach and bilobed liver have been fastened out, as thegenerative apparatus has been upon the right. Some of the nerves,muscles, and arteries have been cut away, but most of the organsin the animaFs entire system have been displayed in this view. Theoesophagus and buccal mass have been pulled a little forwardthrough the nerve c


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Keywords: ., bookcentury1800, bookdecade1870, booksubjectzoology, bookyear1870