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Organs, there thus being one more tube than in Scorpaena, that additional tube lying between tbe 

 fourth and fifth organs of the line. The fourth tube of the line anastomoses, in the middle line of the 

 head, with its fellow of the opposite side, thus forming a frontal commissure, as in Scorpaena. 



The preoperculo-mandibular canal traverses the dentary, articular and preopercular bones, 

 but did not anastomose, at its dorsal end, in the one specimen examined, with the main infraorbital 

 canal: this specimen thus differing, in this, from the specimen examined in connection with one of 

 my earlier works ('04). It contains nine sense organs, three lying in the dentary, one in the articular 

 and five in the preopercular, all innervated by branches of the mandibularis externus facialis. 



Most if not all of the primary tubes branch one to several times after they leave the bones 

 to which they are related and enter the cutis, but no interanastomoses of these tubes were found. 



