433 



KAMAKICHI KISmSOUTE: 



The liver is nearly the same as that of the preceding species ; but the 

 margin is not much divided. Mne venules of the hepatic veia at the external 

 sui-face, and big masses of vascular plexus at the internal surface are found. 



Aü"-bladder is tiiangitlar, pointed at the posterior end. It is nearly 

 sti-aight, thick, and veiy wide at the anterior end, occupying the entire breadth 

 of the abdominal cavity. Air-bladder of this species is however short, occupying 

 a httle more than half the length of the abdominal cavity. The external wall 

 is uniformly thin. The inner wall is finely reticulated. At the middle of 

 the roof of the air-bladder, there is a large round hole, which leads to an 

 accessory conical sac, extending from the hole behind to the posterior end of 

 the principal sac. At the anterior end of this upper accessoiy sac a vein is 

 found to pom- to fi'om a segmeutai'y veki. In immatiu-e tunnies the air-bladder is 

 short,. very narrow, and almost collapsed. The median part of the air-bladder 

 is vaidted, and at the anterior end the cavity has two shght swellings. 



Kidneys are short, and are restiicted to the anterior part of the 

 abdominal cavity. In immatare forms they ai'e ling-shaped, roimd the pharyngeal 

 muscles, and terminate with a slender, short process just tefore the first 

 haemal process. In adult forms, however, the posterior portion is not well 

 developed. Ureters meet at the posterior end of the kidneys, or a little out of 

 it. Near the level of the 7th or 8th vertebra, uretere approach each other 

 towards the median hne, and unite into a common canal. 



Venules to the cutaneous vein are arranged in two rows, and those of 

 the external side pass over the cutaneous ai'tery, wliile those of the interior 

 side run below the aiiery. These venules are formed from the imion of 

 many fine canals, forming the plexus round the dark red poition of the lateral 

 muscle. Aiierioles fiom the cutaneous artery are aiTanged in one row. 

 Oesophageal artery is found but very short. 



SkuU broad, with convex lateral sides, and the broad and high parasphenoid. 

 Basispheuoid tldck. Alisphenoid extends downward at the median line. The 

 anterior margin of the suboporcle is more or less concave. This is quite 

 characteristic of tliis species. 



The back is nearly black, especially at the anterior part of the body, 

 but the colour gi-adually changes to gi'eyish blue with metallic reflections in 

 the posterior paii. Bellj' gi'eyish with many colom'less transveree lines and 



