The morphology and evolutional significance of the pineal body : being part I of a contribution to the study of the epiphysis cerebri with an interpretation of the morphological, physiological and clinical evidence . re-• IBS f posterior lobe); 27, mammillary body (posterior lobe); 32, post-ehiasmaticeminence (inferior lobe); 33, post-chiasmatic recess (recess of inferior lobe); 34,post-infundibular eminence; 35, post-infundibular recess; 39, paraphysis; 42,supra-optic recess; 14, telencephalon; 47, velum transversum. teleosts. Both authors employed the same forms, namely,Sal mo fario and Sfdm
The morphology and evolutional significance of the pineal body : being part I of a contribution to the study of the epiphysis cerebri with an interpretation of the morphological, physiological and clinical evidence . re-• IBS f posterior lobe); 27, mammillary body (posterior lobe); 32, post-ehiasmaticeminence (inferior lobe); 33, post-chiasmatic recess (recess of inferior lobe); 34,post-infundibular eminence; 35, post-infundibular recess; 39, paraphysis; 42,supra-optic recess; 14, telencephalon; 47, velum transversum. teleosts. Both authors employed the same forms, namely,Sal mo fario and Sfdmo salar. According to their descriptions,the anlage begins as a small evaginat ion which gradually elon-gates ;ui(l grows more and more narrow. It has produced aproximal portion, a stalk and an end-vesicle which lie justbeneath the inner surface of the skull in the frontal region. THE PINEAL BODY 51 Still later many small diverticula develop in the walls of theend-vesicle which become unusually large. A feature of thedescription of the development given by these authors is theabsence of any anterior or parapineal element in the epiphysealcomplex, for this organ, according to their observations, does. M Cp R Ch Ds Pf Ls Rn Fig. 18 The epiphyseal complex in a four months old embryo of Acipensersturio, according to Kupffer, 1893. Ls., lamina terminalis; P/., paraphysis; V., velum transversum; Ds., dorsalsac; Ch., commissura habenularis; R., recessus pinealis and pineal organ; Cp.,commissura posterior; M., midbrain. not even make its appearance in anlage. Holt (91)189 describedthe development of the epiphyseal complex in Clupea this form the organ began as a solid sprout and later devel-oped a lumen. The walls of the end-vesicle were eventuallythrown into a number of diverticula. Mclntosh and Prince254in 1891 confirmed the findings of Hoffmann and observation in 1891 is of unusual importance, for thisobserver, working upon Coregonus albus and l
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherphila, bookyear1919
