(dr. a. c. oudemans) list or dutch acari. 



267 



Glyrìcolae Mégnin 1877 in Rev. Mag. Zool. p. 118. 

 Glycicolae Mégnin, 1878 in Journ, Anat. Pliys. p. 4. 

 Listrophoridae Haller, 1880, Milben als Par. d. Wirb. p. 9. 



19. Cytoayics Mégnin 1876, lect. à la réun. des Soc. sav. d, 1. 

 Sorbonne. Synonyms: 



Cytoleichus Mégnin, 1879 in Journ. Anat Pliysiol. p. 150. 

 Cytoäiies Mégnin, 1879, ibidem. 



20. Psoricae. — Delafond and Bourgiguon in 1862 created 

 (Mém. Sav. Etraug. XVI. p. 289) this group, which they called 

 (d'Ordre des Acariens Psoriques». — Synonyms are: 



Trichodactyllna Donnadieu, 1868, Ann. Sc. Nat. (5) X.p. 69. 

 Sarcoptida Claus, 1872, Grundriss d. Zool. I. 

 Sarcoptidae, Donnadieu, 1875, Rech. s. 1. Tétran. p. 9. 

 Acarldae, Glaus, 1880, Grundzüge d. Zool. 1. p. 650. 



21. Sarcoptes Latreille, 1805, Type Acarns scahiei Linné. 

 Synonym : 



Sarkopfes Fürstenberg, 1870, in Mitt. nat. Ver. Neu Vor- 

 pommern. Rüg. II. p. 57. 



22. Sarcoptes cati Hering var. mûris Mégn. This variety does 

 not make burrows, as is well known, but causes incrustations at 

 the ears of the rat. I have, however, observed that on the tail of 

 the rat the same animal makes burrows. 



23. Sarcoptes cati Hering var. musculi^ nov. var. This variety 

 differs distinctly from Sarcoptes cati var. mnris Mégn. Its eggs meas- 

 ured 0.166 m.m. in length. The pregnant females measured 

 0.45 m.m. in length, are consequently much larger than the 

 average oi Sarcoptes cati var. mûris Mégn. The anus in the females 

 is much more backwards , touching nearly the posterior margin. 

 The long hairs of the 3d and -4th. pair of legs are much thinner 

 and very flexible, whilst they are thick and stiff in the variety 

 of the rat. It makes borrows , never crusts ! 



24. Knemidocoptes Fürstenberg, 1870, in Mift nat. Ver, Neu 

 Vorpommern und Rüg. II. p. 61. Q'2 Ty\>e KneMÌdocoj)tes viviparus 

 Fürst, 1870, = Sarcoptes mutans Rob. 1860, — Synonyms: 



bermaioryctes Ehlers , 1873 , in Zeitschr. wiss. Zool. 23. p. 250/51 . 



