438 Capt. DaCanc on the Metamorphoses of Crustacea. 



124. A single imperfect specimen of a very fine Phaseolea allied to Ca-> 

 navulia, and in some respects to Vexillaria, probably forming a new genus, 

 but which with the present materials I am unable to characterize. 



125. Phaseolus lasiocarpus, Mart* in Benth. Ann. Mus. Vind. ii. p. 140. 

 — British Guiana. Schomburgk. 



126. Phaseolus longipedunculatus, Mart, in Benth. Ann. Mus. Vind. ii. 

 p. 141. var. inter m et /3 fere media, foliolis fere omnibus ihtegris. — French 

 Guiana. Leprieur, Herb. Par. n. 46 and 49. 



127. Phaseolus linearis, Humb. et Kunth, Nov. Gen. et Sp. vi. p. 445? 

 — Arid Savannahs at the foot of the'Conocon Mountains, Schomburgk. 



1 28. Phaseolus gracilis^ Ptipp. in Benth. 1. c. ? — Arid Savannahs about 

 Anna-y. Schomburgk. The single specimens sent by Schomburgk of these 

 three Phaseoli are so imperfect that I am unable to determine them with 

 certainty. 



129. Eriosema lanceolatum^ caulibus basi procumbentibus appresse pilosis 

 apice ascendentibus rufo-barbatis, stipulis in unum lanceolatum opposite 

 folium connatis, petiolis brevissimis, foliolo unico late lanceolato obtuso mu- 

 cronato basi subcordato supra glabro subtus ad venas appresse ferrugineo, 

 racemis brevibus paucifloris. — British Guiana, Schomburgk, n. 651.— 

 French Guiana. Herb. Par. n. 16. Flowers yellow (Schomburgk.). 



130. Eriosema violaceum. Rhynchosia {Eriosema) violacea, DC. Prod. 

 ii, p. 388. Cytisus violaceus, Aubl. El. Guian. ii. p. 766. t. 306. — British 

 Guiana. Schomburgk, n. 642. 



131. Eriosema crinitum. Rhynchosia (Eriosema) crinita, DC. Prod, ii, 

 p. 389. Glycine crinita, Humb. et Kunth, Nov. Gen. et Sp. vi. p. 421. t. 

 573. 



132. Efiosema pulchellum, Rhynchosia (Eriosema) pulchella, DC. I. c. 

 Glycine pulchella, Humb. et Kunth, I. c. p. 422. 



The two last species were sent together by Schomburgk and num- 

 bered in my set 245, but from his list there is reason to think there 

 is some mistake of label. I am not certain of having referred the 

 last one rightly to Kunth's species, although'it agrees tolerably well 

 with his description. 



[To be continued.] 



XLIX. — On the Metamorphoses of the Crustacea. By Capt. 



C. DuCane, R.N. 



[With a Plate.] 



Having since toy last communication to the Rev. L. Jenyns 

 on the subject of the metamorphoses of the Crustacea, pub- 

 lished in the Ninth Number of the ( Annals of Natural Hi- 

 story,' had an opportunity of making some observations on the 

 larva of a small species of the common crab [Carcinus Mcenas)> 



