T hompson, W . * C o n trib u tio n s tow a rd s a Knowledge o f th e Mollosca N u d ib ran ch ia a n d M o llusca T u n ic a ta o f
Ire la n d ;’ ‘ A n n . N a t. H is t.,’ v . 5 , p . 8 4 ; 1840.
‘ R e p o rt o n th e F a u n a o f Ire la n d , Div. In v e rte b ra ta * R e p o rt o f th e B ritish Association fo r th e
Adv an cemen t o f Science’ fo r 1843.
‘Ad d itio n s to th e F a u n a o f Ire la n d , in c lu d in g d e sc rip tio n s o f some ap p a re n tly new species o f In v e rte b
r a ta ;’ ‘A n n . a n d Mag . N a t. H ist.,’ v . 15, p . 3 0 8 ; 1845.
T ubton, W. ‘ B ritish F a u n a ;’ Swansea, 1807.
Vebany, D . G. B. ‘ D e sc rip tio n s des Genres Janus e t Lomanotus i' ‘ Revue Zoologique p a r la So ciété Cuverienne,’
p . 3 0 2 ; P a ris, 1844.
‘ Catalogo degli Animali In v e rte b ra ti M a rin i del Golfo di Genova e N iz z a ;’ Genova, 1846.
LIST OF PLATES.
F am . 1 , P I . l . l
2 . J
■ A n a to m y o f D o r is .
3 . D o r is tu b e r c u l a t a .
4 . flam m e a .
5 . J o h n s to n i .
6 . r e p a n d a .
7 . c o c c in e a .
8 . p la n a ta .
9 . a s p e r a , a n d D . p ro x im a .
1 0 . d ia p h a n a .
1 1 . b ilam e lla ta .
1 2 . d e p r e s s a , a n d D . in c o n s p ic u a .
1 3 . p u s illa .
1 4 . sp a r s a .
1 5 . p ilo s a .
1 6 . s u b q u a d r a ta , a n d D . o b lo n g a .
1 7 . A n a to m y o f G o n io d o r is , &c.
1 8 . G o n io d o r is n o d o s a .
1 9 . c a s ta n e a .
2 0 . T r io p a c la v ig e r .
2 1 . Æ g i r u s p u n c tilu c e n s .
2 1 a. T h e c a c e r a p e n n ig e r a .
2 2 . P o ly c e r a q u a d r ilin e a ta .
2 3 . o c e lla ta .
2 4 . L e s s o n ii.
2 5 . A n c u l a c r is ta ta .
2 6 . I d a l i a a sp e r s a .
2 7 . e le g a n s , a n d I . L e a c h ii.
F am . 2 , P I . 1. A n a to m y o f T r ito n ia .
2 . T r i t o n i a H om b e r g ii.
3 . p le b e ia .
4 . l in e a ta .
5 . A n a to m y o f S c y llæ a a n d L o m a n o tu s (E um e n is ) .
F am . 3 , P I . 1 . L a m e o f t h e E o lid id æ .
1 a. L o m a n o tu s (E u m e n is ) m a rm o r a ta .
2 . A n a to m y o f D e n d r o n o tu s .
3 . D e n d r o n o tu s a r b o r e s c e n s .