»60 PHILOSOPHICAL TRANSACTIONS. [aNNO 1685. 



slimy, and lubricous, having either no scales or very small ones ; many of which 

 want the belly fins, or lower pair of fins ; such are the conger, common eel, 

 sea serpent, eelpout, &c. 3. Fishes of a shorter, more contracted, and thicker 

 body, that want the second or lower pair of fins. Of this kind are the globe- 

 fishes, either prickly or smooth ; the triangular and quadrangular fishes, the 

 file-fishes, hippocampi, &c. The rest of this kind, which have two pairs of 

 fins, are divided, according to the number and quality of their back-fins, into, 



4. Such as have three fins on their backs, which are only those of the cod-kind. 



5. Such as have two fins on their back, and 1, such as have them both with 

 soft and flexible rays or nerves. 2. Such as have the foremost with stiff and 

 spinose rays, the hindermost with soft and flexile. 6. Such as have but one 

 single fin on the back, and 1, such as have all the rays of the said fin soft, 

 flexile, and nervose. 2. Such as have the foremost rays thereof stiff" and spinose, 

 the hindermost soft and flexile. In the first book is also exhibited a catalogue 

 of English fishes, as many as have come to the knowledge of the authors; as 

 well such as are found in salt, as in fresh waters. 



The 2d book, which treats of cetaceous fishes, gives, first, general notes of this 

 kind ; 2dly, particular descriptions of the several species. The 3d book con- 

 tains the cartilaginous kind. These have gills in common with the spinose tribe; 

 but, instead of single apertures, they have five oblong holes on each side. 

 These all want scales and the swimming bladder ; they have gristles instead of 

 bones, as their name imports, and have their mouths in the prone or under- 

 side of their bodies ; the males have two penis-like appendices annexed to the 

 fins encompassing the vent, and generate as is before declared. Many of ihese 

 fishes are very voracious, and of speedy concoction, as the sharks ; yet no acid 

 humour is to be perceived by taste in their stomachs, of which there is a very 

 memorable example. The 4th book, which comprehends all the spinose and 

 oviparous fishes, is divided into many sections or subordinate genera, the titles 

 of which are already enumerated. 



Godefridi Bidloo,* M.D. Anatomia Humani Corporis. Amstel.fol. l685. 



N° 178, p. 1309. 

 This anatomy is perfectly demonstrative, or iconographical, consisting of 125 



• The above-mentioned author, (Jodfrey Bidloo, was a native of Amsterdam, and professor of 

 anatomy and surgery at Leyden. Being appointed physician to King William III, he accompanied 

 bim to England. On the death of this Prince, of whose last moments he published an account ki 

 the Dutch language, he returned to Holland and resumed his professorship at Leyden, where he died 

 1713, aged 64. Besides his Anat. Corp. Hum.,he wrote De Animalculis Hepatis Ovilli ; £xercitat. 

 Anatonaico-chirurg. and two controversial tracts, one against Ruysch, viz. Vindiciae qoarund. De- 



