354 AMPniPODA ABERRANTIA. 



2. Caprella lobata. (Plate LV. fig. 8.) 



Squilla lobata, Mdller, O. Fahr. Faun. Gronl. p. 248. 

 Caprella lobata, Guirin, Iconogr. Crust, pi. 28. f. 2. 



Kroijer, Voy. en Scand. pi. 25. f. 3. 



Stimpson, Nat. Hist. Invert. Grand Manan, p. 44. 

 M^\n& lon^icorms, Kroyer, Voy. en Scand. pi. 26. f. 3._ 

 Caprella lajvis, Goodsir, Fdinb. New Phil. Journ. xxxiii. 



TVhite, Hist. Brit. Crust, p. 215. 

 Caprella linearis, Leach, Edinb. Encrjcl. p. 404. 



Body carrpng a few minute tubercles, the most conspicuous being the 

 one on the cephalon, and the most con.stant those upon the three 

 posterior segments of the pereion. First segment of the pereion 

 long ; second scarcely longer than the first ; the three succeeding 

 rather shorter, subequal. Superior antennse not half the length 

 of the animal ; inferior scarcely reaching beyond the extremity of 

 the second joint of the peduncle of the superior. Second pair of 

 gnathopoda articulating with the pereion posteriorly to the centre 

 of the second segment ; propodos long-ovate, palm defined by one 

 and armed with two teeth, the anterior one being often less per- 

 fectly defined than the posterior. The remaining appendages 

 resemble those of C. linearis. 



Length | of an inch. 



Hah. Northern coasts of Europe. Cullercoats(i2ev,^. M. Norman); 

 Kame's Bay, Millport, N. B. {Mr. Bobertson). 



I have little doubt that all the CapreUce which have the first 

 and second segments of the perion long are males, whereas those 

 which have them short are females, even should the ovigerous plates 

 be wanting in the latter. 



3. Caprella tabida. (Plate LVI. fig. 1.) 



Caprella tabida, Lucas, Algerie, f. 6. 



This animal corresponds very closely with C. linearis ; it is a little 

 more robust than the type, but scarcely more so than a specimen 

 dredged by Mr. Barrett in the Atlantic, or than some which have 

 been sent to me by Mr. Robertson from Kame's Bay, MiUport. The 

 palm of the propodos of the second pair of gnathopoda is not defined, 

 slightly concave, and furnished with cilia. 



Hah. Coast of Algeria {M. Lucas). 



4. Caprella typica. (Plate LVI. fig. 2.) 



Podalirius typicus, Kroyer, Voy. en Scand. pi. 25. f. 1. 



Like C. linearis, but more robust, particularly the female. Palm 

 of the second pair of gnathopoda defined, in the male, by a strong 

 recurved tooth, in the female by a small obtuse tooth. 



Hah. Arctic Sea (Kroyer). 



