294 Prof. H. Karsten on Rhynchoprion penetrans. 



seem to have experienced its attacks. Its generic synonymy is 

 given by Professor Karsten as follows : — 



Pulex, Linn. 1767. 



Rhynchoprion, Oken (not Hermann), 1815. 

 Sarcophaga, Guilding, MS., Westvvood. 

 Dermatophilus, Guerin, 183(5. 

 Sarcopsylla, Westwood, 1837. 



Professor Karsten commences his memoir with a series of 

 extracts from the various writers who have mentioned the Nigua, 

 the references to which will be found in the accompanying 

 list f. The results of his own investigations are then commu- 

 nicated in the following words.] 



*Oviedo, Cronica de las Indias, 1547, fol. xxi. 



Hans Staden, Wahrhaftige History, &c, 1557, cap. 33. 



Abbeville, quoted by Shane, p. 256. 



Jean de Lery, Voyage du Bresil, 1585, p. 168. 



R. Hakluyt, The Principal Navigations, &c., London, 1598-1600, p. 449. 



J. de Laet, Beschrywinghe van West Indien, 1630, p. 6. 



Marcgrav Piso, Historia rerum naturalium Brasilia?, 1648, p. 249. 



R. Ligon, History of Barbadoes, 1657, p. 109. 



Du Tertre, Histoire des Antilles, 1667, vol. ii. p. 353, § 12. 



Rochefort, Histoire Naturelle des Antilles, 1668, cup. xxiv. art. vi.p. 272. 



Hans Shane, Voyage and Natural History of Jamaica, 1707-1725, i. 

 p. cxxiv and ii. p. 191. 



Frezier, Reise nach der Siidsee, &c, 1718, p. 310. 



Gumilla, Historia del Orenoko, 1745. 

 *Ulha, Relacion Historica del viaje a la America meridional, 1748, libro i. 

 cap. viii. p. 88. 



Catesby, Natural History of Carolina, &c, 1743, vol. ii. Appendix, p. 10. 



Barrere, Nouvelle Relation de la France equinoxiale, 1743, p. 63. 

 Patrick Broivn, Natural History of Jamaica, 1756, ii. p. 418. 

 Linne, Systema Naturae, ed. 12, 1767, p. 1021. 

 Bancroft, Natural History of Guiana, 1769, p. 245. 

 Hartsinck, Guyana, 1770, i. p. 105. 

 Chappe d'Auteroche, Voyage en Californic, 1772, p. 20. 

 Molina, Saggio sulla storia naturale de Chili, 1782, p. 214. 

 *Dobrizhoffer, Historia de Abiponibus, 1784. 



The first educated naturalist who described the Nigua from personal 

 examination was 



*0. Swartz, Kongl. Vetensk. Acad. Nya Handl., Stockholm, 1788, torn. ix. 



p. 46 (Pidex penetrans). 

 *Rodschied, Medicinische und Chirurgische Bemerkungen liber das Clima, 

 &c., von Essequibo, 1796, p. 307. 

 Azara, Voyages dans l'Amerique meridionale, 1809. 

 Southey, History of Brazil, 1810, i. p. 326. 

 Von Sack, Reise nach Surinam, 1821, p. 239. 



Oken, Naturgeschichte, 1815, Bd. iii. Th. i. p. 402 ("Rhynchoprion" 

 referred to the Acari). 



f The more important references are marked with an asterisk. 



