100 PROCEEDINGS OF THE ACADEMY OF [Feb., 



A NOTE ON THE GENUS LOLLIGUNCULA. 



BY S. S. BERRY. 



In 1881 Professor Steenstrup, as a note to the French resume of his 

 paper on " Sepiadarium og Idiosepius" (K. Danske Vidensk. Selsk. 

 Skr., 6 R., I, 1881, p. 242), wrote as follows: 



" Le Loligo brevis de Blainv. est pour moi le type d'un genre a part: 

 Lolligunculo. Parmi les especes connues du genre Loligo Lmk., cette 

 espece, si bien caracterisee par ses nageoires epaisses, larges et tres 

 courtes, formant dans leur ensemble un ovale transverse, est la seule 

 dont les famelles recoivent les spermatophores sur la paroi interieure 

 du manteau, a cote de la branchie gauche. 



Le male du Loligo brevis, ainsi que celui du Loligo brevipinna Les., 

 si ce dernier est reellement une espece distincte, ne m'etant pas connu, 

 la place systematique du genre nouveau est pour moi encore un peu 

 deuteuse." 



L. brevis is an Atlantic form, but 1 have lately encountered a species 

 from the opposite coast of Middle America which may prove to belong 

 to the same genus. 

 Lolliguncula (?) panamensis " sp. Plate VI. 



Body of moderate size, plump and compact for Loligo, resembling 

 L. brevis of Blainville in general shape, but even wider and more 

 swollen. Mantle margin obtusely angled above, and produced for- 

 ward more acutely on either side of the siphon; broadly emarginate 

 below. Fins large, rhomboid, with an obtusely rounded outline; 

 more than half as long as the mantle; lobate in front, and barely 

 continuous behind around the blunt posterior end of the body. Mantle 

 connectives large and prominent, but offering no especial peculiarities 

 of structure. 



Head small, much narrower than the body; squarish; deeply 

 excavated below. Eyes rather large, a low, transverse, membranous 

 crest just behind them. Siphon large and broad, much compressed, 

 and supported by bridles. 



Arms rather small, decidedly unequal; order of length 4 = 3, 2, 1 ; 

 the dorsal pair considerably the smallest and shortest. Suckers 

 small, in two rows, obliquely set on short peduncles ; horny rings armed 



