ANNELIDA* 
631 
Sternaspidea* 
StBrnmpis d^simiUs, sp. il., Malmgren, 1. c. p. 87) Isle de R^,near Rochelle j 
S. islandicttj sp. D., Malmgreli, 1. c. p. 87, tab. 14. fig. 85, Iceland. 
Nereidea* 
MalmGrEn (/* d. p. 46) proposes the following subdivisions of this family, 
in which the new genera proposed are sufficiently indicated ; but we refer to 
the pages where full diagnoses will be fotmd : — 
Nereidse verte boreali-europere in genera dispositee. 
I. Pedes posteriora versus formam valde mutantes. 
A. Seto3 per totum corpus falcato3 ot spinosce. Paragnathi ^ separati. 
Mutatio pedum fit non abrupte. 
1. IIedyle, Mgrn. 
If. lohulata, Mgrn. 
B. Setge in posteriore parte corporis cultratee, in anteriore modo spinosse 
vel saepius spinosaa et falcatae. 
1. Mutatio pedum fit abrupte. Setse in anteriore parte corporis fal- 
catro et spinosa}. 
1 a, Paragnathi connati, pcctines minutos forniantes. Lobus cepha- 
licus antice rotundatus basi emarginata. Cirri tentaculares sat 
longi .... 2. Iphinereis, Mgrn. 
I. fucicola (QErst.), Mgm. 
' \h. Paragnathi separati annulatim et gregatim dispositi, Lobus 
cephalicus subconicus truncatus* 
3. HetEronereiS (CErst.). 
II. grandifolia (H. Rathke). 
2. Mutatio pedum fit sensim. Setse modo spinosse in anteriore cor- 
poris parte. Paragnathi minuti vel evanescentes* 
4. Eunereis, Mgm. 
E. fow^ts5nna(Johnst.),Mgrn. (excl. syn. CErsti). 
II. Pedes per totum corpus sequales vel posteriora versus formam paullum 
sensim mutantes. Setoe per totum corpus spinosce et falcatse vel modo 
spinosse. 
A. Lingula suprema admodum magna foliacea* 
1. Per totum corpus modo setse spinosse. * 
6. Alitta (Knbg.). 
A. virens (Sars), Mgrn* 
2, Setse falcatse et Spinosse. 
6, StratonicE) g. n., Mgrn. 1. c. p. 60, 
S. marioni (Aud. & M.*Edw.). 
B. Lingula suprema ceteris baud multo vel paullum major. Setse per 
totum corpus falcatse et spinosse. 
. 1. Pedes posteriora versus formam paullum mutantes : ramus superior 
inferiors Sensim longior. Cirri tentaculares longissimi, 
1 a. Lobus cephalicus rotimdatus, basi levitor emarginata. Para- 
gnathi connati pectines minutos formantes. 
7. Leontis, g. n., Mgrn. I c. p. 62. 
L. diimerili (Aud. & M.Edw.). 
^ Noduli duri comei dentiformes plerumque conici nigrescentes proboscidis 
exsertse. 
2 T 2 
