CEPHALOPODA.—_BERRY. 13 
—M. aldrovandi (Rafinesque, 1814) = M. cirrhosa. 
— M. ventricosa (Grant, 1827) ..... = M. crrhosa. 
—M. pennantii (MacGillivray, 1843) = M. cirrhosa. 
—M. genei (Vérany, 1851)......... = M. cirrhosa. 
3. M. verrucosa (Verrill, 1881) ........ 466-1,255 fath., off East Coast of 
United States.* 
— M. halliana (de Rochebrune, 1884) = M. cirrhosa ? ** 
4. M. rotunda (Hoyle, 1885) .......... 1,950 fathoms, Southern Ocean, Lat. 
South 53° 55’, Long. East 108° 35’ 
(also off Valparaiso ?). 
5. M. brevis (Hoyle, 1885) ........... 600 fathoms, off Monte Video. 
6. M. charcots (Joubin, 1905).......... Antarctic (beach, Booth Wandel 
; Island; 10 fathoms, Scotia Bay, 
South Orkneys). 
7. M. turquets (Joubin, 1905).......... Antarctic (25 fathoms, off Booth 
Wandel Island). 
8. M. nigra (Hoyle, 1910) ............ Angra Pequeiia, South-west Africa. 
9. M. challengert (Berry, 1916) ........ 630 fathoms, off the Kermadec 
Islands. 
To the above are now added the following Antarctic forms :— 
HN, Wh HAW ISO. oo pee gin hades: 1,700 fathoms, off Wilkes Land. 
lly Meadelicana ms sp:) 9. .eu sss ess 300 fathoms, off Adelie Land. 
L2G OTe NaSPame adele edie spaces 120-325 fathoms, off Queen Mary 
Land. 
13. M. harrissonvn. sp. ............-. 270-358 fathoms, off Queen Mary 
Land. 
The genus is in certain respects a difficult one, and not even its European representa- 
tives have been thoroughly worked out until very recently. Its metropolis, however, 
appears to be not the Mediterranean, as formerly believed, but the Antarctic, where 
the group would seem nearly or wholly to replace the otherwise cosmopolitan genus 
Polypus. An explanation of the apparently complete absence of the latter genus from 
the waters surrounding the Antarctic Continent, when it is so abundantly represented 
in the entire South Pacific, Australian, South African, and South American regions, is 
difficult to seek. 
* The Pacific records of this species appear to me exceedingly dubious. 
** T follow Naef’s treatment of the European forms, but cannot find that he mentions W/. halliana. 
