A. Schm. Atlas tab. 92, fig. 1. Structuram rcticiilato-squainosam earente, tan- 

 turn in centro areolis panels intlicata ; niargine snbtiliter striolato, dentato-crenato. 

 Kekko, Szakal, Szent-Peter. 



Forma: squamosa tab. 1, fig. 4, *^Vi- Tota valva squamoso-reticulata. 

 Szent-Peter. 



Forma: punctata tab. 12, fig. 102, "^i. StruL-turam reticnlato-squa- 

 mosam deticieute, plicis late et profiinde lobatis; margiue snbtiliter striolato. 

 Szakal. 



Aulacodiscus Lunyacsekii nov. spec. Valva circnlaiis, ad marginem 

 maxime elevata, plicato-erenata; appendicibus crassis 5 — U— oO area laevi einctis ; 

 rimis radiantibns brevibus; structura punctata; puncti.s papillosis, ad margi- 

 nem decrescentibus minoribus, in lineas radiantes et discurse tortas et vibratas 

 ordinatis ; margine cingulo punctorum distantium oruato ; area centralis magna 

 laevis. Discernenda: 



Forma: minor tab. 1, tig. 2, ^oo/j ; tab. 2b, fig. 229, "Vi- Diameter 

 0'13 — 0-15 mm.; plicis profundioribus et majoribns; rimis distinctioribiis. 



Forma: maxima tab 2, fig. D, 10, ^^Vi, tab. 25, fig. 225, ^i^i- l^ia- 

 meter valvae 0.2 — 0*48 mm. appendiculis nsque ad 30 validis ; plicis minoribus 

 undnlatis; rimis liant conspicuis. 

 Kekko, Szakal, Szent-Peter. 



Aulacodiscus neog-radensis nov. spec. tab. 25, fig. 227, "^/i. Valvis 

 rotundis, vallo elevato polygouo ornatis, dentato plicatis, plicis dilatatis ; appen- 

 diculis 4 — D robustis area laevi einctis; rimis ab areis appeudicularibis ortis 

 profundis, ad aream ceutralem laeviin currentibns; structura punctata, punctis 

 papillosis (4— GinO'Ol mm.), ad marginem decrescentibus, ad rinias in duabus 

 lineas radiantes ordinatis, ceteris in lineas parallelas dispositis; margine snbti- 

 liter punctulato et striolato. Diameter 0*15 — 0"21 mm. 

 Kekko, Szent-Peter. 



Aulacodiscus polyg-onus Clrun. tab. 2G, fig. 23(3, '"'7i. Valvis poly- 

 gonis, inter angulos obtusissimos subconcavis, appendiculis minoribus submar- 

 ginalibns (12 in specimine unico observato) seriebns duabns pnuctarum a centro 

 appendicnlo qnoque versns radiantibns, punctis ceteris in lineas parallelas 

 dispositis hand concentricis omnibus circulo parvo circumdatis, in media parte 

 deficieufibus, valva ubique inter punctos majores minute irregulariter grauulata, 

 concentrice nndulato plicata. Diameter 0.182 mm., series punctorum 4— 4V2 

 in 0*01 mm. 



Szent-Peter. (A. Grunow). 



Observavi banc praeclaram speciem etiam in strato tertiario ( )amaru 

 Novae Seelandiae Australiae. 



Var. polyg-ibba Grun. tab. 2(3, fig. 237, 6oo/^_ Valvis inter angulos 

 magis prominentes concavis, plica margiuali latiore, appendiculis 10. — Dia- 

 meter 0-18 mm. 



Szent-Peter. (A. (>rnii(>ir). 



