160 TRIGLID,?5. 



/, g. Large specimens : stuffed. Frith of I'orth. 

 h-k. Adult : skins. England. Prom Mr. Tarrell's Collection. 

 I. Adult. Eiver Gotha, Sweden. From Mr. Lloyd's Collection. 

 m. Adult female : skeleton. River Gotha, Sweden. From Mr. 



Lloyd's Collection. 

 n, 0. Veiy large specimens. Baltic Sea. From the Haslar Collection. 

 p. Very large specimen : skeleton. 

 q. Adult. 

 r,s. Half-grown. 

 t. Half-grown. 

 u. Adult : stuffed. 

 V. Intestines of specimen m. 



Sheleton. — The greater part of the upper surface of the skull ia 

 formed by the principal frontal bones, which have a crescent-shaped 

 incisure on the side for receiving the eye. The sjiace between the 

 eyes is concave, and its width is two-thirds of the distance between 

 the upper posterior angles of the orbits ; these angles are indicated 

 by a striated protuberance of the bone. The crown of the head is 

 very broad and fiat ; an obtuse ridge runs from the protuberance men- 

 tioned to the insertion of the suprascapula, and separates the crown 

 from the lateral parts of the head ; a similar transverse ridge crosses 

 the supraoccipital. A part of the ethmoid, which is intercalated 

 between the frontal bones, is quite free ; anteriorly it is bifurcate. 

 The turbinal bones are armed with a spine ; the palatine bones 

 oblong, toothless. The vomer is anchor-shaped ; its anterior- arms 

 are provided with a band of villiform teeth, bent at an obtuse angle; 

 its posterior part is broad anteriorly, and tapers posteriorly mto an 

 obtuse point. The basisphenoid is flat beneath, very long, reachinp, 

 nearly as far forwards as the vomer ; there is no pit bet vvecn the 

 basioccipital and the basisphenoid. The basal portion of the brain- 

 capsule is slightly convex, broad, and depressed. 



The upper maxiUary bone is rather elongate, styliform antf^' iorly, 

 and spatuliform behind ; it has no supplementary bone. Thr inter- 

 maxillary is one-third • shorter ; its posterior margin is slightly 

 flattened and produced ; each posterior process is divided into two, 

 namely into a broad, oblong, exterior part, and a longer interior 

 one which is pointed. The dentaiy bone of the mandibula is deeply 

 forked ; only the inferior part is joined to the articular, the superior 

 being quite free. The articular bone is composed of three processes : 

 the middle and longest joins the dentary, the two others being free ; 

 the one is styhform and points upwards, the other is broad and di- 

 rected downwards. Tlio dentary, like other bones of the skull, has a 

 muciferous channel, as in a great many — more or less in all — Acan- 

 thopterygn, and therefore not a peculiarity of the Cottoids. 



The infraorbital bridge is formed by three oblong flat bones with 

 several mucous pits. The opcrclcs are composed merely of ridges, 

 terminating in, or armed with, spines ; the connecting bony parts 

 between the ridges are feeble and thin. 



Each OS imiommatum is composed of three lamcUae, the inferior of 



