12 NILS HJ. ODHNER 



or perhaps due to an oversight. The rhinophores, too, show 

 a granulation or papulation in the same way as in G. 

 lobata, though they are described and figured as smooth by 

 G. 0. Sars. 



It is rather strange that neither M. Sars, nor G. 0. Sars, 

 has mentioned the cutaneous lobes on the right side of the 

 notum, which their original specimens have in common with 

 G. lohata. In one specimen from Kristiansund as well as in 

 that from Hardanger the posterior lobe is very distinct, while 

 the anterior ones are difficult to perceive. It must be emphasized 

 that the posterior lobe exists in all specimens collected by Sars 

 as well as a trace of the anterior one, though none has been 

 observed. Thus, the formation in question is a specific character, 

 constant in every specimen, and present only on the right side 

 of the body. 



The incompleteness mentioned concerning the description 

 and the drawings given by G. 0. Sars, which are otherwise smart 

 and accurate, has contributed to the misinterpretation of this 

 species which Bergh has been led to. Bergh himself seems, 

 even, to be somewhat uncertain of the identification of his G. 

 typica, as appears from his note (1886, p. 14): „Es könnte viel- 

 leicht angezweifelt werden, ob die unten untersuchte Form 

 wirklich mit der von Sars identisch sei" etc. 



That these two forms are distinct was shown by me with 

 full evidence in 1907, when I remarked that „the differences are 

 so important that the species must also be allotted to different 

 genera. Goniaeolis, in Bergh 1886 and 1889, shows such points 

 of agreement with Chlamylla Bergh 1886 that the two genera 

 have here been united under the last name. Goniaeolis of M. 

 Sars 1861, on the contrary, owing to the structure of the liver 

 and the papillae, must be placed in a separate family, Goniae- 

 olididae, belonging to the group Tritonoidea." 



For a comparison I give here the figures reprinted from 

 G. 0. Sars (1872), and from my work of 1907. 



