UG 



Actino2'>lenjtju — Vcrcomorphi. 



Talrle-case, 

 No. 16. 

 Wall-case. 

 No. 54. 



Wall-case, 

 No. 17. 



Wall-case, 

 No. 17. 



Table-case, 

 No. 54. 



Table-case, 

 No. 54. 



Wall-case 

 No. 17. 



Remains of true " Angler-fishes " (LnphiHs) have been dis- 

 cftvered at Monte Bolca ; and the Trachinidiie ('' Stare-gazers," 

 etc.) may possibly be represented by GalUpteryM from the same 

 locality. To the latter also certainly belong Trachinopsls from 

 tlie Upper Tertiary of Lorca, Spain, and Psendoi'legiuKs from the- 

 Uppei' Miocene of Licata, Sicily. 



The Scombridte — or Mackerel family — occur fossil in various 

 Tertiary deposits. They may often be readily distinguished by 

 the curious series of finlets, in most cases present behind the 

 second dorsal and anal tins. 



The " TiTnn}^ " {TJiijnuus) and an extinct genus, Orcynus,iire 

 met with at Monte Bolca : remains of Cyhlnm are not un- 

 common in the London Clay : and three other extinct genera, 

 Arcluens^ hums, and Palimphyei:, occur in the black Eocene 

 Slates of Canton Glaris. 



To theCoryphrenida^ — pelagic fishes with a single long dorsal 

 fin and laterally-compressed body — Dr. Glinther refers the 

 ( lasferonemus of Monte Bolca, which is perhaps not distinct 

 f]'om the living genus Mene. It is remarkable for the length of 

 the spinous rays representing the pelvic fins, and several fine 

 specimens ai'e exhibited in the Wall-case. Ginnogiiatlius, from 

 Sheppey, may also be placed here. 



The CarangidjB, or " Horse-mackerels," constitute an exten- 

 sive family of laterally-compressed deep-bodied fishes, abun- 

 dantly represented at present and throughout the Tertiai-y 

 ])eriod, comprising a few forms also in the Cretaceous. Vonwr, 

 Aipiclithys, and Flatax, have been described from the Chalk 

 of Comen in Istria (Trieste), and Flatax alone from that 

 of Mount Lebanon : the last-named genus survives in existing 

 seas (as the " Sea-bats ") having also left traces of its presence 

 in the Eocene of Monte Bolca, and the Crags of our Eastern 

 counties. The Crag fossils are mere fragments of vertebral 

 centra, neural spines, and interspinous bones ; the spines are 

 tumid in the middle, giving the broken pieces a curious appear- 

 ance. Semiophorus (Fig. IQ'l) is a remarkable extinct genus 

 found at Monte Bolca, and characterized by the enormous 

 development of the dorsal tin ; the pelvic fins are lonof and 

 slender, thoracic in position, and situated in advance of the 

 pectorals, which are very small. Lichia, Caramjopsis, and Ductor, 

 are other Monte Bolca genera shown in the Wall-case; the first 

 still exists, the second is scarcely distinguishable from the 

 living Caranx, and the third appears to be extinct. Amplilstinm, 

 from the same deposit and the Paris Eocenes, is another form 

 referable to this family. 



Of the Acronuridffi, or" Surgeons," species pertaining to the 

 living Acaiithurus and Naseus are exhibited from the Eocene of 

 Monte Bolca. 



An extinct family, apparently most closely related to the 



