330 ME. A. T. JENNINGS ON THE STEUCTUEE Or 



Prof. Milne-Ed wards's figure reappears in Bronn's ' Klassen 

 und Ordnungen des Thier-Eeichs,' * which gives also a figure 

 of the larval stage ; and more recently Messrs. Schiodte and 

 Meinert t have described two specimens whicli they regard as 

 distinct species. These also seem to be drawn from dried 

 specimens, and add nothing to our knowledge of the mor- 

 phology of the genus. 



A year or two ago, while I was engaged in arranging the 

 new Museum at the Pree Public Library in Whitechapel, tbe 

 Eev. Dan. Grreatorex (who generously gave his collection as 

 the nucleus of that Museum") called my attention to a curious 

 Crustacean of almost spherical shape which, lie had never been 

 able to identify. This proved on investigation to be a fine 

 specimen of OurozeuJctes Owenii, which, having been preserved 

 in spirit immediately after capture, shows admirably the natural 

 form of the organism. It was given to Mr. Grreatorex by the 

 captain of a sailing-ship, who said it had been taken at sea near 

 Kerguelen Island, and tliere seems no reason to doubt that the 

 locality is correct. 



The specimen is nearly two inches in length and more than 

 an inch in breadth across the widest tergum ; whilst the enor- 

 mously developed brood-chamber below, three quarters of an 

 inch in depth, makes the animal appear almost globular when 

 viewed from the front. As all the previously recorded specimens 

 seem to have been females, it is probable that, like other Cymo- 

 thoidse, the animal is hermaphrodite and proterandrous J. The 

 brood-chamber contained a considerable number of larvae about 

 3 millim. long, all in the same stage of development. 



It is unfortunate that we have no further details as to the 

 habit of the animal, but it is almost certainly parasitic, partly or 

 entirely. This and other general questions will, however, be best 

 left till some account has been given of its external anatomy, so 

 far as may be learnt from the single specimen at disposal. 



* ' Arthropoda,' Band v. Ablh. 2, Taf. viii. fig. 20 (1851), and Taf. xxvi. 

 fig. 1 (1883). 



t Nat. Tidskrift, vol. xiv., Copenhagen, 1884. 



\ BuUar, " G-enerative Organs of Parasitic Isopoda," in the ' Journal of 

 Anatomy and Physiology,' 1876, p. 118 ; and Mayer, " Ueber d. Hermaphro- 

 ditismus einiger Isopoden," in Mittheil. Zool. Stat. Naples, 1879. 



