290 A HISTORY OF RECENT CRUSTACEA 
Alima is the larva of . . . Squilla. 
Alimerichthus . . . .-+. Squilla (Chloridella group). 
Iysioerichthus (short-spined)  Lysiosquilla. 
Lysoerichthus (long-spined). Lysiosquilla 
(Coronis group). 
Eruhthahima =. . . ... Coromda. 
Pseuderichthus . . . . . Pseudosquila. 
‘Gonertchthus . |. 2%... ~Gonodactylus. 
An unknown form. . . . Protosquilla. 
In support of this affiliation Brooks says, ‘ Faxon has 
reared a Squilla empusa from an slima larva. The Chal- 
lenger collections show that the larva of Lysiosquilla macu- 
lata is one of the short-spined Lysioerichthi; I have reared 
Liysiosquilla (Coronis) excavatriz, one of the more primitive 
Lysiosquille, from a long-spined Lysioerichthus. Claus has 
figured a series which shows beyond question that at least 
one species of Pseuderichthus becomes a Pseudosquilla,-and 
the Challenger collections furnish equally good proof that 
the Chiragra group of Gonodactyli come from Gonerichthus 
larve, and I therefore believe that we may very safely 
assume that all the [ysioerichthus larve are young Lysio- 
squille, all the Alima larve young Squille, Alimerichthus 
one of the lower Squille or Chloridelle, all the Gonerichthe 
young Gonodactyli, Erichthalima very probably a young 
Coronida, and ail the Pseuderichtht very probably young 
Pseudosquille.’ 
