.'{;50 TAOH SKOOSHERfl 



Tlic upper lip anil the roil-.sliap ed organ are similar to those oi the male. 



The lateral eyes are, like those of the type species, situated somewhat in front 

 of the middle of the shell and somewhat above half the height of the latter. They are rather 

 smaller than those of the male. 



c. (C.) lepidophora Remarks: — I regard C. (C.) hfidofhora (Ci. W. Mulleh) as the female of 



= c. (C.) serrata, o. ^, g^„„f(^ ((}_ ^y. MtiLLER). — Descriptions of these two forms are to be found in (i. \V. MuLl.EU's 

 work 190(i 1), pp. 20 and 21. 



This author has the lullowing remark about the latter species (p. 22): ..A\'ahrciid wii- sonst 

 die ; in der ITberzahl tindeu oder die 9 ganz felilen, vcrmissen wir hiei- die J. Umgekehrt ver- 

 missen wir bei J\ serrata die '■,', und ila sich beide Formen in Stat. 99 und 14() in groBerer Anzalil 

 nebeneinander fanden, liegt der Verdacht nahe, daB sie als die Geschlechter einer Art zusammen- 

 gehoren. Immerhin unterscheiden sich beide Formen in so zahlreichen Merkmalen. auf welche 

 sich sonst die secundaren Geschlechtsmerkmale nicht zu erstrecken pflegen, daB ich mich nicht 

 habe entsehlieBen konnen, beide in einer Art zu vereinigen, doch wird man bei weiteren Fiingen 

 die Frage der Zusammengehorigkeit im Auge behalten miissen." 



The fact that in an additional case these two forms — or rather a variety of these two 



forms — were caught together — there were no other sjjecies at all of this sub-genus in this 



sample — as well as the rather great morphological resemblance has convinced me that it is 



most in accordance with the facts of the case to connect the two forms in question as males 



and females f)f the same species. 



'\''-wic. As in a. W. Muller's work mentioned above C. (C.) serrata is placed before C. (C.) 



lepidophora, the former name must obviously be retained according to the rules of nomenclature. 



.1 i/iisiiii;i- made bi/ In describing the posterior part of the shell, as seen from inside, in C. (C.) serrata 



',' ', '„ "' /'',."','^'.'[ G. W. MOller has obviously confused the right and the left valve owing to a mistake, a fact 



.•icnaui . that has apparently increased the amount of difference between this form and ('. lepidophora; 



the same mistake is repeated in his work of 1912. That there is a mistake is shown by the 



accompanying figures in (i. W. Muller's work, which show that C. (C.) serrata and C (('.) 



lepidophora, like the males and females of the form described by me above, agree in this character. 



'I'/tr vancij/ Tile Variety described above closely resembles the type species and it does not seem 



" """" " " ' ' '" impossible to me that in the future we may find that it must be united with this. As a preliminary, 



'.'//"' ■■species/ -^ .... . 



however, it has seemed to me necessary to distinguish it as a separate form. With regard to 

 the differences that exist I need only refer to the description and figures. A number of the 

 tlifferences may possibly be explained as the results of lack of accuracy and care on the part 

 of (1. W. MCI.I.ER. 



Habitat: — A u s t r a 1 i a : 



Cape Jaubert, N. W. Australia (type locality); at the surface of the sea; 

 2. VI. 1911 (coll. E. MjOherg): four mature males and five luature females; K. M. S. 



