46 SOLENODON PARADOXUS. 



organ is large and comjjosed of three main lobes whose appearance is essentially 

 like that in Centetes. The left lateral lobe is large and rather oval, slightly less 

 in breadtli posteriorly than anteriorly. It is without secondary divisions. The 

 right lateral lobe is of smaller diameter and subcylindrical, consisting of two 

 portions: the main lobe proper and the caudate division. The latter is large 

 and of jiractically equal length with the main lobe into whose dorsal surface it is 

 received by a deep groove. The sides of this groove enfold the caudate lobe so 

 that its exterior surface is continuous with that of the rounded main lobe. 

 The distal ends of the two appressed lobes are hollowed to receive the anterior 

 end of tlie right kitlney, which tliey thus together siu'round. In Gymnura the 

 caudate lobe is represented as long and narrow, and alone enfolding the end of 

 the kidney. In Erinaceus the condition is much the same. The Spigelian lol)e 

 is very short and single, thus resembling that of Centetes, rather than that of 

 the Erinaceidae in which it is generally larger in proportion and bifid. The 

 central lobe of the liver is practically entire excei)t for a slight fissure at its left 

 end, visible in ventral view, but covered dorsally by the gall bladder. The d< )rsal 

 surface is deeply grooved for the reception of the jiyriform gall bladder, which is 

 partially overhung by a i)rojecti()n ( )f the substance ( )f the liver. The suspensory 

 ligament is attached along the median portion of this central lobe for some 

 18 mm. Posteriorly a small thread-like division of this ligament is given off to 

 the tiji of the secontlary lobe separated off by the slight fissure previously men- 

 tioned at the left side of the main central lobe. The gall bladder is large and 

 ]iyriform and its duct, aliout 30 mm. in length, opens into the small intestine in 

 cfimmon with that of the pancreas at about a centimeter fi'om the pylorus. 



The pancreas (Plate 9, fig. 7) is a large structure with very definite outline, 

 and consists of two main lobes. The one is elongate, about 55 mm. in length by 

 15 in width, and of a slighth' reddish color. The other is subtriangular, and 

 much more solid in consistency, becoming decidedly thickened at the free 

 rounded apex. The duct is confluent with that from tlie gall blailder at about 

 6 nim. from the oi)ening into the small intestine. There are no secondary 

 pancreatic ducts. The great size and solidity of the pancreas are noteworthy 

 in Solenodon paradoxus. The slight and racemose structure figured for this 

 organ in S. cubamis (Peters, '64, Plate 2, fig. 10) is quite different and may be 

 the result of partial decomposition. In its bilobed character and the stoutness 

 of the large triangular portion, the pancreas of S. paradoxus seems to bear much 

 resemblance to that of Chrysochloris. 



Glands. — The spleen (Plate 9, fig. 5) is a large flattened mass of a dark red 



