﻿P T E R P D A. 



Plato. 



aciculata, D'Orhiijiiij. Cre V. 



a&nk, D'Orhi,,,,!/. Hy I. 



arctica, F.)An>/»"s-. Spi VI. 



Australe, 7)'0W,;;,»,/. Bal VI. 



AustniHs, T/Orhi.jHi/. Cleo IV. 



Australis, ,S',.»/r//,.;. Spi VI. 



Balintnim, TUnr^. Bal IV. 



cancellata, Z)'Oi-?;i'(/H;/. Sin VI. 



Chaptalii, 7?.v-7r.».i;. Bal VI. 



chithvatua, Soul eijft. Spi VI. 



cohimnella, Jf'o;;/. Trip V. 



corniformis, D'Orhiginj. Cre V. 



Cumingii, r'i!>7i((;/t'.s'. Hy I. 



cuspidata, Q'xjy. Cleo IV. 



de[nvss.!i, D'Orhiyiiij. Dia III. 



flava, D'OMg,,,/. Hy I. 



Fleraiugii, Forica. Spi V. 



ForshiH;, TfOrhig-ny. Eij I. 



gibbosa, /i «'/(,(/. Hy I. 



globulosa. Ilaiiij. Hy I. 



inflata, 7?.n<'/- Atl VI. 



inflatum, Eiiduux. Bal VI. 



inflexa, ZcswMr. Dia III. 



iutermedia, Soicerliij. Hy II. 



Jeffreysii, Forbes and niinhij. Spi.... V. 



Kerandreni, j;«»;/. Atl III. 



labiata, ZJ'Ori(>y. Dia III. 



Species 

 29 



3 



40 

 46 



39 

 2G 

 43 

 47 

 41 



Plate. 



Ia3vigata, D'0W«/«7»y. Hy II. 



\\mha.t&, B'Ofhhjnij. Hy II. 



lobata, Som'»%! Cleo IV. 



longirostris, if'S!(C»r. Hy II. 



Macandrei, .For/;es. Spi V. 



microscopica, Graij. Lin VI. 



minuta, Sower&y. Hy II. 



Tancvou&ia,, Lesueur. Dia III. 



/(tiitZosa, Deshayes. JTy I. 



obtiisa, Rang V. 



ohtusa, Sowerhj. Hy II. 



pa2}ilio»acea,Yincent. Hij I. 



Poromi, Lesueur. Atl III. 



pyramidata, Q»o?/. Cleo IV. 



qnadridentata, Les^tcKr. Dia II. 



Ba iKj i i, Deshajes. II ij I. 



TCCMVYXLva, Children. Bal IV. 



rotunda, D' Orhujny. Spi V. 



rotunda, Sowerbij. Cre V. 



spiuifera, Bang. Cre V. 



striata, B(7Hr;. Cre V. 



suhnla, Qnoy. Ore V. 



tridentata, D'0)7«'r/»)/. Hy I. 



trispinosa, iesMfftr. Dia III. 



unpinnata, D'0r6/(/n!/. Hy I. 



veutricosa, So«?e!/et Spi V. 



virgula, Jitxiiy. Cre V. 



