ON THREE liNTERESTING NEW OEGOPSIDS FROM THE BAY OF SAGAMI. 135 
small size but a little larger than the connective suckers the next ventral series, 
composed of five suclvers as small as those of the most ventral one ; and the 
third series, which is just median in the club, having three suckers a little 
larger than any of those of the preceding series. The most dorsal series, 
which is next to the connective sucker series in the hand portion, has only 
two or three suckers which are the largest amongst the tentacular suckers, 
being twice or thrice as large as those of the most ventral series. (3) Suckers 
of the distal portion are all minute, being much smaller than the connec- 
tive suckers, and they are not connected to the sucker group of the hand 
portion as in HI. hoylci, but are entirely separated from it '\ and they are 
distributed in a very irregular manner, except for their proximal ones which 
seem to be arranged more or less regularly in five or six series (text-fig. 2). 
The tentacular suckers are of much depressed shape, their aperture being 
comparatively larger than those of the arm-suckers, and they have, along the 
margin of the aperture, distinct radial muscles, which are most distinctly 
visible on the largest suckers. The denticulation of the horny rings does not 
admit of being examined on account of the aperture being filled with the 
same horny substance as occurs in the arm-suckers. 
The series of the horny tubercles runs along each outer median line of 
the three dorsal pairs of arms as well as along the median line of the dorsal 
surface of the mantle as occurs in J/, hoylci. The tubercular series of the 
first pair of arms is the longest, and beginning at the anterior part of the 
dorsal surface of the head, it reaches a point a little proximal from the middle 
of the arms. It comprises ten or eleven large tubercles and some minute ones. 
The larger ones diminish in size towards the distal end of the series, the most 
proximal being the largest, and the smaller ones are intercalated among the 
larger. The series of the second pair is shorter than that of the first pair, 
beginning at the level of the anterior margin of the umbrella or a little pos- 
terior to it, and the number of tubercles in thissereis is ten or eleven. The 
series of the third pair is the shortest, with eight or nine tubercles. 
i) Because of this characteristic, the specific name ''separata' has been given to it. 
