498 



ARANE.E OF NORTH AMERICA MARX. 



families a new and separate tribus — the Filitelaricc ; I have, however, 

 added to it the family Scytodidce, a family which by its character- 

 istic features belongs rather to the lower types than to the so much 

 higher developed group — the Retitelarue. Professor Simon, in his 

 " Arachn. de France," has already placed this family near the Dys- 

 deridce. 



I have further adopted, for the family Pholcidw, Dahl's new tribus 

 Plagitelarice, and removed it from the Retitelariw to near the preceding 

 tribus, as the structural characters of this family, the weak extremi- 

 ties, and trophies, the peculiar form of the body, the arrangement of 

 the eyes, and the peculiarly constructed male palpi, indicate in my 

 opinion, a lower grade of development than that of the other Eetitela- 

 rian families. 



The American families treated in this catalogue now present the 

 following scheme : 



Order ARANEiE. 

 Suborder I. TETRAPNEUMONES. 



I. Tribus Terretelaree. 

 Family Calouimatidse. 

 Family Tberapbosidaj. 



Subfamily Eriodontinye. 

 Subfamily Tberapbosime. 

 II. Tribus Umbellitelaree. 

 Family Hypocbilidae. 



Suborder II. DIPNEUMONES. 



III. 



IV. 



Tribus Filitelaree. 



Family Filistatidaa. 



Family Dysderidre. 



Family Scytodidse. 

 Tribus Plagitelari.e. 



Family Pbolcid;i\ 

 Tribus Tubitelari^e. 



Family Drassid.i'. 



Family Dictynidae. 



Family Urocteidse. 



Family Clubionidre. 



Family Catadysidse. 

 Family Agalenid;e. 

 Family Dinopidaj. 

 VI. Tribus Retitelaree. 



Family Prodidornidse. 

 Family Tberidiia). 

 VII. Tribus Orbitelaree. 

 Family Epeiridte. 

 Family Tetragnatbidas. 

 Family Uloboridte. 

 VIII. Tribus Laterigrad;e. 

 Family Tboiuisid;i\ 



Subfamily Tbomisinse. 

 Subfamily Pbilodroininae. 

 Family Sparassidte. 

 IX. Tribus Citigrad.e. 

 Family Lycosidse. 

 Family Oxyopidas. 

 Family Podopbthalmidaa. 

 X. Tribus Salttgradje. 

 Family Attidte. 



Subfamily Attinse. 

 Subfamily Lyssomaninae. 



Note.— Tbe asterisk before a name signifies tbat tbis species bas been described 

 also from a foreign country. Tbe reference notes are at tbe end of tbe catalogue. 



