Conilera, Leach. 



554 cylindracea, Mont. 

 Cirolana, Leach. 



555 borealis, Lillj. 



= C. spinipes, Bate and West. 



556 neglecta, Hansen. 



557 Cranchii, Leach. 



558 concharum, Stimp. 

 Eurydice, Leach. 



559 pulchra, Leach. 



560 *truncata, Norman. 



561 Grimaldii, A. Dollfus. 



= *E. elegantula, Hansen. 



562 spinigera, Hansen. 



563 inermis, Hansen. 



= *E. polydendrica, Nor. and Stebb. 



M. S. 

 Sphaeroma, Latreille. 



564 serratum, Fab. 



565 rugicauda, Leach. 



566 Hookeri, Leach. 



567 curtum, Leach. 



568 Prideauxianum, Leach. 



569 granulatum, H. M. Edw. 



570 quadridentatum, Say. 



571 tridentatum, Grube. 



572 *Bolivari, De Buen. 



573 gibbosum, H. M. Edw. 

 Cymodocea, Leach. 



574 pilosa, H. M. Edw. 



575 truncata, Leach. 

 Dynamene, Leach. 



576 versicolor, Rathke. 



= D. rubra and viridis, Leach. 

 = D. varians, Stebbing. 

 Neesa, Leach. 



577 bidentata, Adams. 

 Campecopea, Leach. 



578 hirsuta, Mont. 

 Limnoria, Leach. 



579 lignorum, Rathke. 

 Glyptonotus, Eights. 



580 entomon, Lin. 



581 Sabini, Kroyer. 



582 caecus, Say. 



583 Tuftsii, Stimpson. 

 Idotea, Fabricius. 



584 balthica, Pallas. 



585 viridis, Slabber. 



= 1. salinarum, A. Dollfus. 



586 granulosa, Rathke. 



Idotea, Fabricius. continued. 



587 *neglecta, G. O. Sars. 



588 Basteri, Aud. 



589 emarginata, Leach. 



590 pelagica, Leach. 



591 *phosphorea, Harger. 



592 metallica, Bosc. 



593 hectica, Latr. 



594 linearis, Lin. 

 Zenobiana, Stebbing. 



595 prismatica, Risso. 



= 1. parallella, Bate and West. 

 Synidotea, Harger. 



596 nodulosa, Kroyer. 



597 bicuspida, Owen. 

 Edotea, Guerin-Meneville. 



598 triloba, Say. 



599 montosa, Stimpson. 

 Stenosoma, Leach. 



600 appendiculatum, Risso. 



60 1 lancifer, Leach. 

 Erichsonella, H. Richardson. 



602 *attenuata, Harger. 



603 filiformis, Say. 

 Arcturus, Latreille. 



604 Baffini, Sabine. 



605 tuberosus, G. O. Sars. 



606 hystrix, G. O. Sars. 

 Astacilla, Cordiner. 



607 longicornis, Sow. 



= A. gracilis, Goodsir, 6. 



608 intermedia, Goodsir. 



= A. affinis, G. O. Sars. 



609 pusilla, G. O. Sars. 



610 Deshayesii, Lucas. 



= *A. linearis, Stebb. 



611 granulata, G. O. Sars. 



= A. americana, Harger. 

 Arcturella, G. O. Sars. 



612 *damnoniensis, Stebb. 



613 dilatata, G. O. Sars. 

 Asellus, G. St. Hilaire. 



614 aquaticus, Lin. 



615 groenlandicus, Kroyer. 



616 *coxalis, A. Dollfus. 

 Janira, Leach. 



617 maculosa, Leach. 



618 tricornis, Kroyer. 

 lanthe, Bovallius. 



619 spinosa, Bovallius. 

 610 *laciniata, G. O. Sars, 



