7 



Bekrv — Ke\ii-:\v oi^ Cephalopod Genera 351 



Rcntarks. Tliis be;;utiful. cxlrtriiiely interesting, and yet little known species 

 woukl ap[)eai" tu l:)e a not uncunmiun inlialjiiant of the waters of the southern 

 p(jrtion of the Australian continent. Careful ecological and anatomical work is 

 badly needed, and the latter would do nuich to clear up its decidedly uncertain 

 relationships. \Miether the species is photogenic would likewise be an interesting 

 point to establish. 



Tlie description by d'C )rbigny eighty years ago still remains the most com- 

 plete account of the species that we have. 



SEPIADARIUM Steenstrup, 1881. 



Scf^iadariinii .^teenstrup. 1881, p. 214 (4). 



„ V'errill, 1881. p. 417 (suggests relationship tu L.oUgu). 



Fischer, 1882, p. 350. 

 Brock, 1884, p. 105-114. 



Steenstrup, 1887, p. 67-72, 116, 120. 121 (21-26, 70, 74, 75). 

 Appellof, 1«9S, p. 57U, with rigs. 



KEY TO THE SPECIES of SEPIADAKIUM. 



a. Eins narrow, nearly fuur-tifths as long as the mantle . . aiinlitiii. p. 354 

 aa. Fins less than half as long as the mantle . . . . . . i 



I. Dorsal arms longest ; tentacle clubs with extremely 

 minute suckers in 8 or more rows (if we may 

 judge by Steenstrup's figure) ; hectocotylized arm 

 of male armed with a series of grooved, trans- 

 verse, pad-like lamellae on distal portion, bounded 

 by a fold-like membrane .. .. .. .. /fO(7((/. p. 351 



i'. Lateral anus longest; tentacle chilis with about 6 

 ro-\\ s I if small suckers on widest portion and a 

 wide keel ; hectocotylized arm of male armed with 

 a series of conical lamellae on distal portion, not 

 bounded by distinct folds or continuous mem- 

 branes.. .. .. .. .. .. •• (///J^r/;; ((;;;, p. 354 



SEPIADARIUM KOCHII Steenstrtip, 1881. 



1881. Srl^niili.iiiiiii kocliii Steenstrup. K.l). X'id. Selsk. Skr. (6j, i, p. 218, 235 



(8, 2^ ), pi. i, fig. i-io. 

 1887. ,, kocliii Brock, Zool. Jalirb., Syst.. ii, p. 595 (recorded from 



Amboina ) . 



