464 BE VISION OF HE TER OMI— G ODE AND BE A N 



tlioiigli its insertion is slightly in advance of that of dorsal. Veutrals 

 closely adjacent, separated by narrow groove, broad, with peduncle- 

 like bases, thickly covered with scales, and are i)rovided with two 

 spines and eight or nine (as nearly as the specimen will permit deter- 

 mination) rays. 



Eadial formula: 1). x; A. xix (130); 0. 0; P. (17); V, ii, 8-9. 



The U. S. Fish Commission received the type from the schooner Gath- 

 erer, of Gloucester (Capt. Briggs Gilpatrick), which had been taken 

 from the stomach of a (Iround-shark {^oinniosus hrcvipinnh), on the 

 Grand Bank of ^Newfoundland. 



(t I G L I () L I A , ufw geiiuw- 



A genus of XotacanlhvJa', distinguished from iSfotaeanthus by the less 

 advanced position of the dorsal, the tirst dorsal s])ine being placed in 

 the vertical over the vent and close to the vertical from the first anal 

 spine. Uorsal spines(3-0; aiuil spines 15-18, these being lougerandmore 

 slender than in Notacanthus, enveloped nearly to their tips in a mem- 

 brane, and grading imperceptibly in length and size into those of the 

 anal, which is comparatively high. The greatest heig'ht of the body is 

 in the region of the ventral tins, and the lateral line, which is conspicu- 

 ous, is arched over the pectorals and ventrals, but follows closely the 

 dorsal outline until it passes beyond the dorsal spines, after which it is 

 directed in a straight line to the- tip of the pointed tail. Head com- 

 paratively broad, mouth inferior, almost suctorial; teeth in each inter- 

 maxillary 20-22; snout thick, swollen, much produced, nostrils large, 

 conspicuous, covered by a membranous flap. Pectoral short, broad, 

 rounded. Ventrals placed low down and completely united, extending 

 to the vent. 



In general appearance and proportions this form resembles the high- 

 backed division of the genus KotdcanihnH, to which belong ^". wa.sH.sand 

 N. cliemnitzu. Its mouth, however, is placed more on the under surface 

 of the head than even in N. sexspinis, and resembles in some respects 

 that of our new genus Macdonaldia. 



This genus is named in honor of Commendatore Enrico Hillier Gig- 

 lioli, professor in the University of Florence and founder of the Cen- 

 tral Museum of Italian Vertebrates, who has been identified with all the 

 ettbrts of the Italian Government in deep-sea research, and whose thor- 

 ough works upon the geographical distribution of Italian vertebrates, 

 both terrestrial and aquatic, are of an importance which can not be 

 overstated. 



The only species assigned to this genus is that obtained by the Chal- 

 lenger oft' the southwest coast of South America, and referred by Gun- 

 ther to Notacanthiis honaparUi. For this form, represented by a single 

 individual Hi inches long, from a depth of 400 fathoms at station 1310, 

 we propose the spe(;ific name vioscleyi, in memory of the lamented Henry 



