belonging to the Family Laodlceidte. 471 



canals far away from the stomacli ; so that the position of the 

 gonads of Staurophora does not jastify its removal to the 

 AnthomedusEe nor allow one to look upon the enlarged radial 

 canals of Laodice as lobes of the stomach. Hartlaub (1897) 

 has suggested that Staurophora is related to the Tiaridee, 

 because the early stages bear a resemblance to Tiara. 



Staurojyhora Mertensli, Brandt, 1835 ; id. 1838, p. 400, 

 Taf. xxiv.-xxv. ; Hteckel, 1879, p. 149. 



This is the type species of the genus, and as it has not 

 been taken since the days of Brandt, a fresh description to 

 meet modern requirements and detailed drawings are much 

 needed. 



Brandt's figures show that the cross-shaped stomacli an 1 

 mouth, which extend right across the subumbrella, have a 

 large number of short lateral lobes. These lobes form the 

 characteristic feature of the species, as they are arranged in a 

 definite manner, either alternating or in pairs, and have a 

 deHnite sliape. 



Distribution. North Pacific ; Norfolk Sound and off the 

 Aleutian Islands. 



Staurophora arctica (Hseckel), 1879. 



Staurostoma arctica, Haeckel, 1879, p. 131 ; Levinsen, 1892, p. 145 ; 

 Aurivillius, 1896, p. 194 ; Linko, 1900, p. 4, Taf. ii. fio-g. 22-25 • 

 1904, p. 218 ; 1907, p. 151. 



This species, according to Haeckel, has the gastro-genital 

 cross extending completely across the subumbrella, but the 

 mouth extends for only half that distance, so that the distal 

 half of each ray is a closed tube. 



Linko (1900) states that ail the tentacles (over 400 in 

 number) are equal in size and similar, and that on their inner 

 side, close to the velum, there is blackish ocellus. He fifures 

 a long cordylus between every two tentacles and also a sensory 

 vesicle above the velum, one opposite every tentacle. So far 

 as I know, a sensory vesicle has not been yet found in any 

 other species of the Laodiccida3. It is a small vesicle, with a 

 single otolith, embedded in the ectoderm, and situated just at 

 the juncture of the velum with the subumbrella. 



JJistrihution. Arctic Ocean ; Spitzbergen {HcecJcel). Ba- 

 rents Sea, Kolafjord and Ekaterinen Haven in Lapland 

 {Linko'). West coast of Greenland (Levinsen). 



