282 



bmm pioducto vcrsu.*; coinua, latcralitcr cnm basi cornuiini 

 ipsa , posterius cuiii arcu tcmporali scabcnimo ad basin 

 coiiuiniii prodiicto et. ciiin ojXMciilis braiK hi.ilibiis, (uitciius 

 CLini lamina utraqnc inystacoa ad frcniiin oiis et rum la- 

 bio, mcdianlr incinbrana labiali, infcriits nim Jabio infciioii 

 et mcnibrana branchiostega. Orbitac in mcdio vcrlice ap- 

 proximatae fornicc commimi didymo, pcr lucdiiim snlcum 

 frontalem vel inliaoïbitalcm, longiUidinalilcr cxca\ato pro- 

 inincntisimae, postciiora versus itciiini descendunr. ad nu- 

 cliaiii inter ciistas dlias seu caiinas paiallellas deprcssam. 

 Carina iitraque in spinam occipitalem terminalur et nucha 

 ipsa est conlinuatio siilci fionLalis vel intra orbitalis. Ociill 

 magni capsiilis vel thecis oibitalibus osscis inclusii, irides 

 virescentes annulo aiueo piipillas cingcntes falvo fiiscoque 

 radiis concentricis radiatae. OpcrciiUi branchialia angiiloso- 

 dilalata polygona triplici superficie prostant. Supcrlicies nii- 

 tcrior patentissima, obliqua, alain dictam utramque occupât 

 spinis tribus longissimis dixergentibus applanatis dentatam 

 (vid. fig. 1 . /. ^. (/.) et binis brevioribus flabello branchiali 

 impositis (ce) annataiii , siipcrior superficies a margine po- 

 sterioii orbitac ad basin cornuum horizontaliter extensa 

 angulo acuto Iriangularis, minor reliquis et arcu tcmporali 

 poslice cr(Miulato terininala , supeificies denique pusterior 

 maxima, arcuato dentala, ab utiaque carina et spiiui occi- 



