NATURAL SCIENCES OF PHILADELPHIA. 139 



CRUSTACEA. 

 1. Eupagueus pubescens Brandt. Pagurus pubescens Kroyer, Naturhist. 

 Tidsskrift, ii., 251 ; Voy. de la Recherche, Crust, pi. ii., f. 1. Godhavn. 



2. Crangon boreas J. C. Fabr. Cancer boreas Phipps, Voy. towards the North 

 Pole, 190, pi. xii., f. 1; 1T73. Cancer homaroides 0. Fabr., Fauna Groenlandica, 

 p. 241. Godhavn; Port Foulke ; Littleton I. 



3. Hippolyte Gaimardii M. Edw., Hist. Nat. des Crust, ii., 378. Kroyer, Moa- 

 ografisk Fremstilling af Slaegten Hippolytes Nordiske Arter, p. 74, pi. i. f. 21-29. 

 Port Foulke. 



4. Hippolyte gibba Kroyer, Monog. 80, pi. i., f. 30, 31, et pi. ii. f. 32, 37. 

 II. Belchcri Bell, in Belcher's Arctic Voyage, ii., 402, pi. xxiv. f. 1. Port 

 Foulke. 



5. Hippolyte turgida Kroyer, Monog. 100, pi. ii., f. 57, 58, et pi. iii., f. 59- 

 63. Godhavn ; Port Foulke. 



G. Hippolyte Phippsii Kroyer, Monog. 106, pi. iii., f. 64-68. Port Foulke. 



7. Hippolyte polaris Owen, Appendix to Ross' Voyage, p. 85. Kroyer, 

 Monog. 116, pi. iii., f. 78-81, et pi. iv. , f. 82. Alpheus polaris Sabine, App. to 

 Parry's Voyage, p. 238; pi. ii., f. 5-7. Port Foulke; Littleton I. 



8. Hippolyte borealis Owen, Appendix to Ross' Voyage, p. 84, pi. i., f. 3. 

 Kroyer, Monog. pi. 122, pi. iii., f. 74-77. Littleton I. 



9. Hippolyte aculeata M. Edw., Hist. Nat. des Crust., ii.. 380. Kroyer, Monog., 

 126, pi. iv., f. 83-98, et pi. v., f. 99-104. Cancer aculeatus O. Fabr., Fauna 

 Groenl. p. 239. Alpheus aculeatus Sabine, Appendix to Parry's Voyage, p. 237, 

 pi. ii., f. 9. Godhavn. 



10. Mysis oculata Kroyer, Groenlands Amfipoder, p. 88. Cancer oculatus O. 

 Fabr., Fauna Groenl., p. 245. Port Foulke. 



11. Anonyx ampulla Kroyer, Naturhistorisk Tidsskrift, Anden Raekke, i., 578. 

 Voyage de la Recherche, pi. xiii., f. 2. Cancer ampulla Phipp's Voyage towards 

 the North Pole, 1773, p. 191, pi. xii., f. 2. Gammarus ampulla Sabine. Anonyx 

 lajena et A. appendiculosus Kroyer, Groenl. Amph., pi. 1. Dr. Hayes' speci- 

 mens were obtained at " Gale Point," which I am unable to find on the chart. 

 They differ somewhat from authentic specimens of the species, received from 

 the Scandinavian Naturalists, in being larger, and in having the upper lobe of 

 the eye broader. 



12. Pherusa tricuspis nov. sp. Near P. bicuspis (Amphitoe bicuspis Kroyer, 

 Greenland's Amfipoder, p. 45, pi. ii., f. 10) but has a dorsal spine, of lesser size, 

 on the last thoracic segment, as well as on the first and second abdominal ones. 

 The gnathopoda are slender and weak, the hands being no broader than the 

 preceding joints. The antennae are very slender and nearly as long as the 

 body. The latero-posterior margin of the third abdominal segment is armed 

 with two small teeth, one situated at the inferior angle, (which is a right angle,) 

 the other at some little distance above and hook-shaped, the point curving up- 

 ward. The upper pair of uropoda or caudal stylets is shorter than the other 

 two pairs. Length nearly one inch. Littleton Island. 



13 Gammarus locusta J. C. Fabr., Ent. Syst. ii., 516. Kroyer, Groenl. 

 Amfip., 27. Bate and Westwood, Hist, of British sessile-eyed Crustacea, i. 378, 

 wood-cut. Cancer locusta Linn. Fauna Suecica, 2d ed. 497. Oniscus pulez O. 

 Fabr., Fauna Groenl. p. 254. Gammarus pulez Stimpson, Mar. Invert, of Grand 

 Manan, p. 55. Port Foulke. 



14. Tiiemisto arctica Kroyer, Groenland's Amfipoder, p. 63, pi. iv. f. 16, (?) 

 In stomach of seal taken at Cape Faraday. 



1862.] 



