520 Deutsche Siidpolar-Expedition. 



hens" (Cuxnixgham's T e x t - B o o k (i f A ii a t o m y , 2ncl ed., p. 935). Again, the ductus venosus is described as passing 

 directly „from the left vena advehens to the right liepatic vein" (v i d e ibid.), whereas, in the liver under consideration, 

 the mouth of the ductus venosus opens tn the left side of the crescentic fold, which appears to represent the remains of a 

 fiision between the right and left hepatic veins. Further, to cpiote again from the sanie authority, ,.The upper part of the 

 inferior vena cava is develojjed as an outgrowth from the common triink formed by the fu.sion of the ductus venosus with 

 the rjght hepatic vein". From the present dissection the inferior vena cava would appear to arise from the right hepatic 

 vein indepcndently of the ductus venosus, more especially in view of the fact that the inferior vena cava receives direct 

 tributaries from the caudate lobe adherent to its ventral aspect. 



The gall-bladder, which was empty, occupied a fossa on the visceral aspect of the mesial portion of the rigiit 

 lobe of the liver. It thus lay to the right side of the ligameutum teres, from which it was separated by a projecting portion 

 of liver substance, connected to the left lobe by a pons hepaticae. This portion of the liver corresponded in general Posi- 

 tion with the quadrate lobe of the human liver. 



The c y s t i c duct ])asscd towards the liilum of the liver and, having been joined by hepatic ducts corresponding 

 in miniber with the tliree chief lobes of the liver, the common bileduct was formed. This duct persued its course on the 

 ventral aspect of the foramen of Winslow and, immediately after j)assing this foranien, i. e. just before reaching the duo- 

 denum, it was joined by the pancreatic duct. The duct thus resnlting came in contact with the duodenum a little more 

 than half an inch from the pylorus. It jjerforated the duodenal wall very obliquely, and opened on the summit of a papilla 

 at a distance of 2 inches from the )iylorus. 



The p a n c r e a s presented a characteristic appearance. A small part of this gland was found within the duodenal 

 mesentery, but the greater part of the organ extended headwards behind tlie lesser peritoneal sac. The pancreatic duct 

 emerged from the substance of tlie organ on the cephalic (anterior) side of the foramen of Winslow (not from that part 

 within the duodenal mesentery). and. extending to the right side, it formed a junction with the comnuin bileduct on the 

 cephalic side of the foramen of Winslow and fuUy 2 inches from the conunun orifice by which both ducts pour their Con- 

 tents into the duodenum. 



The spieen measured from 9 to 10 inches in lengtli, from 1 to 6 inches in width, being narrow anteriorly and 

 Wide posteriorly. It was extremely thin, being not more than a cpiarter of an inch in thickness. It was situated between 

 the stomach and the dorsal wall, being attached to the former by the gastro-splenic Omentum and to the latter by a dorsal 

 mesial mesentery. There was no intiniate relation between the spieen and either of the kidneys, because these organs were 

 removed from all immediate association by reason of their Situation considerably nearer to the pelvic region. The tail end 

 of the pancreas extended into the posterior splenic mesentery but did not come in contact with the spieen." 



Zuletzt habe ich hier einige kurze Angaben zu erwähnen, die Tims (1910) über die Anatomie 

 einiger Feten von Leptonychotes Weddelli gemacht hat. Dieser Autor verfügte über nicht weniger 

 als 29 Embryonen dieser Robbenart, welche von der englischen „National antarctic Expedition 

 1901 — 1904" gesammelt worden waren. Der jüngste dieser Embryonen war nur 12 mm lang, der 

 älteste hatte eine Länge von 795 mm. 



Die jüngeren Embryonen hat Tims aber offenbar noch nicht genauer untersucht. Welche der 



älteren Embryonen als Grundlage der folgenden Beschreibung dienten, wird leider nicht erwähnt. 



— — — vOwing to the curvature of the vertebral column in the cervical region, the Oesophagus is deflected to one 

 side." 



„Tliere is a considcrable aniount of black pigment present in the mesentery and Peritoneum generally. In the dorsal 

 part of the cavity it is ))resent in so large an amount as to give the Peritoneum in this Situation an almost uniformly black 

 a|i])earance." 



.,The greater part of the stomach lies to the left of the mesial plane; it is relatively broad, so that the organ has an 

 almost globular shape. The liver becomes more multilobed as age increases, the individual lobes exhibiting a considerable 

 amount of fissuring. In the oldest specimen, there is a greatly elongated lobe on the left side whicli runs some distance 

 backwards along the dorsal abdominal wall." 



„The intestine was considerably coiivoluted. Owing to its brittle condition it was impossible to obtain exact measure- 

 nients, but the total length of the gut was approximately 2,5 metres in the oldest foetus. The large intestine was not sac- 

 culated, the diameter being the same throughout the length of the intestine, with the exception of the rectum, which was 

 slightly enlarged. There was no coecum, Meckel's diverticulum, or any appendices epiploicae." 



