ILLUSTEATIONS. XLI 



Page, 



PIG. 462. Mancasellus macfourus (After Garman). a, Outline of one side of 

 head. b, One of second genital plates of male, c, Mandible, d, 



Hand, e, Uropod 413 



463. Mancasellus macrourus (After Hay) 413 



464. Mancasellus macrourus (After Garman) 414 



465. Mancasellus macrourus. a, First leg. b, Maxilliped. c, Second 



maxftla. d, First maxilla, e, Mandible. /, Uropod 414 



466. Mancasellus tenax (After Harger) , 415 



467. Mancasellus tenax. a, Abdomen with uropoda. b, First leg . .... 416 



468. Mancasellus danielsi 417 



469. Mancasellus danielsi. Mandible 418 



470. Mancasellus danielsi. Maxilliped 418 



471. Mancasellus danielsi. Leg of first pair 419 



472. Asellus communis (After Smith ) 421 



473. Asellus communis. a, First leg of male, b, Uropod 421 



474. Asellus intermedius 422 



475. Asellus injermedius. a, First leg. 6, Abdomen with uropoda 422 



476. Asellus intermedius (After Forbes), a, One of first pair of genital 



plates of male, b, One of second pair of genital plates of male. . . 423 

 477. Asellus brevicauda (After Forbes), a, Hand of male, b, One of 

 first pair of genital plates of male, c. One of second pair f>i genital 



plates of male 424 



478. Asellus brevicauda 424 



479. Asellus brevicauda. a, First leg. b, Uropod. c, Palp of mandible. 



d, Maxilliped 425 



480. Asellus hoppinae (After Faxon) 425 



481. Asellus hoppinae. a, Peduncle of second antennae, b, Abdomen 



with uropoda. c, First leg 425 



482. Asellus attenuatus 427 



483. Asellus attenuatus. Leg of the first pair of female 427 



484. Asellus attenuatus. a, Maxilliped. b, Mandible 427 



485. Asellus attenuatus. a, Leg of the first pair, b, Third pleopod of 



female, c, First pleopod of female 428 



486. Asellus aquaticus (After Sars). a, Dorsal view of female, b, First 

 and second antennae, c, Upper lip. d, Lower lip. e, Left man- 

 dible. /, First maxilla, g, Right mandible, h, Palp of mandi- 

 ble, i, Second maxilla, j, Left mandible, k, Maxilliped. 

 I, First pleopod of female, m, First leg. n, Second pleopod of 

 male, o, First pleopod of male, p, Fourth pleopod of female. 

 q, Uropod. r, Abdomen of female, s, First leg of male, t, Fifth 



pleopod of female, u, Third pleopod of female 430 



487. Asellus tomalensis 432 



488. Asellus tomalensis. Mandible 432 



489. Asellus tomalensis. Leg of first pair 432 



490. Csecidotea stygia ( After Hay) 434 



491. Caecidotea stygia. a, Terminal segment of body and uropoda. 



b, Maxilliped. c, First leg. d, Mandible 435 



492. (After Hay. ) a, Abdomen and uropoda of Csecidotea stygia (Mam- 

 moth Cave), b, Uropod of Caecidotea nickajackensis (Metcalf, 

 Georgia), c, Abdomen' and uropoda of Caecidotea richardsonse 

 (Nickajack Cave), d, Gnathopod of Caecidotea nickajackensis 

 (Metcalf, Georgia), e, Fifth leg of Caecidotea nickajackensis 

 (Metcalf, Georgia). /, Fifth leg of Caecidotea richardsonae (Nick- 

 ajack Cave), g, Fifth leg of Caecidotea stygia (Mammoth Cave) . . 435 



