244 HARGITT. [VOL. II. 



However, the matter is not in any wise dependent upon data 

 of this character. Even a glance at Figs. 9-12 will show, 

 though diagrammatically, the relative number and distribution 

 of the tentacles about the margin, while an inspection of the 

 tables will show how very variable is this matter. 



Bifurcation of tentacles, tentacular spurs, etc. - - In all some 

 fifteen specimens were found having variations involving one 

 or more of the features indicated under this head. As noted 

 by Agassiz and Woodworth ('96) in Eucope, the origin of 

 spurs is usually from the base, as is also the doubling of the 

 tentacles, as shown in PI. IV, Figs. 2, 7, and 10. In several 

 specimens there was an evident bifurcation of the terminal 

 portion, as shown in PI. IV, Figs. 5, 6, 8, and 9. In the speci- 

 mens shown in PL IV, Fig. 6, this had occurred in close 

 conjunction with the peculiar suctorial bulbs or pads so char- 

 acteristic of this genus, while in Fig. 8 it is shown as having 

 occurred somewhat proximal to these structures. A single 

 specimen was found having three of these organs on a given 

 tentacle at considerable intervals. In several specimens the 

 tentacular pads or bulbs associated with the bases of the tenta- 

 cles exhibited peculiar cordate lobings, sometimes on the outer 

 border, more frequently on the inner edge, or from both, as if 

 about to divide, though in no case was division found to be 

 complete in a given bulb. However, this feature will acquire 

 some significance in relation to the double and triple tentacles 

 shown in Fig. 2, where the pads are correspondingly double 

 and triple. 



As compared with the specimens of Figs. 7 and 10, however, 

 there will be seen no such correlation, a fact which would sug- 

 gest a measure of caution concerning the possible relation of 

 the apparent division of the basal pads and the doubling of 

 tentacles. This caution is further emphasized by the fact that 

 in their origin new tentacles appear wholly apart from these 

 pads, which only after some time are gradually developed on 

 their ventral bases. 



I am unable to agree with Agassiz and Woodworth (op cit., 

 p. 139) that these double and triple tentacles are due to coa- 

 lescence of the bases. Whatever may be the case with Eucope, 



