Processus falciformis., membranosus, niger, erectus, tenuis, retinam 
findens ex insertionis locvo excurrit, versus lentis partem inferiorem. 
Lens magna perfecte globosa, tertia 'sui parte e pupilla prominens, 
corneae ipsius centrum tangit, ante aqueo bulnore perpauco circumfusa. 
Vitreum corpus pro pisce satis magnum, uveae vel coronae potius ciliari 
adhaeret et mediante nigro pigmento quasi agglutinatur. 
7) I discovered tbat the spherical nucleus of tbe cristalline lens of tlie Cod, wliich 
in specific gravity is 10 water neaily as 6-5 and to coiuniouwhite glafs as 5 only 
^ to 10, collects the light so rauch more powerfully tban water or glafs does, tliat 
its focus is not more tban one sixtli part of its diameter distant from its sur- 
face”. Auex. Moxro , 011 the Eye. Edinb. 1797. p. 88. 
Acipenseris Stnrionis oculus. 
Sturionis ultra trecentas libras, pondere aequantis oculus, diametro 
maxima vix pollicem emetiens ob sclerotices insignem crassiticm cavitatem 
parvam dumtaxat includit, aeque ac oculus Balaenae. 
Bulbus enim in adipe atque cellusosa stipata permulta latens, pyrifor- 
mis quasi apparet. 
Sclerotica catinum firmum in fundo duas linea? crassum, margine 
acutum faciens, imprimis cartilagine constat, elastica, pellucida, scu- 
tellis duabus osseis semilunaribus supra et infra in limbo anteriori positis, 
annulo osseo avium et amphibiorum analogis firmata, vasculis nonnullis 
ciliaribus perforata. Exterqe obducitur haec cartilago uiembrana alba, 
fibrosa, maimnalium scleroticae simili, e nervi vagina oriente canalemque 
amplum obturante, quo nervus opticus ad oculum pervenit ®). 
Cornea parv^a horizonta! iter oblonga, perparum convexa, tenuior in 
centro, crassior versus marginem qua scutellis osseis scleroiices inhaeret et 
cuti crassae fuscae, quae partem bulbi anteriorem lanquam conjunctiva 
obducit. ' > 
\ 
8) Rosbnthal Zergliedorung des Fischauges, in Reils Archiv B. 10. 'St. III. p. 595 
seqq. Tab. VIL i'ig. 3-d Sturionis oculum exhibent. In fig. 3. praesertim squa- 
mulae • osseae cernuntur, quae in sectione horizontali nostra apparere non 
potuerunt. 
g) CcviKR Anat. coinp. T. Ih p. 388. 
