﻿VISCERA. 
  

  

  49 
  

  

  YI. 
  YlSOERA. 
  

  

  A 
  general 
  sketch 
  of 
  tlie 
  internal 
  soft 
  anatomy 
  is 
  

   not 
  attempted 
  here. 
  We 
  will 
  merely 
  indicate 
  the 
  prin- 
  

   cipal 
  differences 
  in 
  the 
  structure 
  of 
  the 
  lungs 
  and 
  uro- 
  

   genital 
  apparatus 
  which 
  are 
  of 
  special 
  importance 
  

   from 
  the 
  point 
  of 
  view 
  of 
  the 
  systematist. 
  The 
  

   following 
  figure 
  will 
  suffice 
  to 
  show 
  the 
  position 
  and 
  

   relations 
  of 
  the 
  various 
  parts. 
  

  

  Longitudinal 
  section 
  through 
  body 
  of 
  male 
  Bana 
  esculenta, 
  

   showing 
  the 
  viscera. 
  

  

  ca. 
  

  

  cf. 
  

   cl. 
  

  

  h. 
  

  

  i. 
  

  

  Auricle 
  of 
  heart. 
  

  

  Adipose 
  bodies. 
  

  

  Bile-duct. 
  

  

  Cloaca. 
  

  

  Liver. 
  

  

  Small 
  intestine. 
  

  

  ig. 
  

  

  I. 
  

  

  la. 
  

  

  p. 
  

  

  pa. 
  

  

  r. 
  

  

  Large 
  intestine. 
  

  

  Spleen. 
  ■ 
  

  

  Larynx. 
  

  

  Lung. 
  

  

  Pancreas. 
  

  

  Kidney. 
  

  

  s. 
  Stomach. 
  

  

  t. 
  Testicle. 
  

  

  V. 
  Ventricle 
  of 
  heart. 
  

   ve. 
  Bladder. 
  

   vf. 
  Gall-bladder. 
  

   vs. 
  Yesicula 
  seminis. 
  

  

  The 
  lungs 
  are 
  a 
  pair 
  of 
  sessile, 
  or 
  very 
  shortly 
  

   pedunculate, 
  oval 
  sacs, 
  often 
  more 
  or 
  less 
  pointed 
  

   posteriorly. 
  Their 
  walls 
  are 
  thick 
  and 
  spongy 
  in 
  

   Bana, 
  thin 
  and 
  diaphanous 
  in 
  the 
  other 
  genera. 
  

   Their 
  periphery 
  may 
  be 
  divided 
  into 
  nu'merons 
  air- 
  

   cells, 
  around 
  which 
  the 
  ramifications 
  of 
  the 
  pulmonary 
  

   artery 
  are 
  distributed, 
  as 
  in 
  most 
  genera; 
  or 
  the 
  cells 
  

   may 
  be 
  few 
  and 
  the 
  ramifications 
  of 
  the 
  artery 
  reduced 
  

  

  