867 



Trochus 548. cinerarius 595, umbilicalis 



175. 



Troglodytes niger 603, 604. 

 Trogones 542. 

 Truinbididaa 207, 536. 

 Trombidium 535, 711, gymnopterum 711. 

 Trommelfell (Amphibia) 476. 

 Tropaea 215. 

 Trophoblast 508, 540. 

 Trophoplasma 297. 

 Tropidodipsas 61. 

 Tropidonotus 60. 123, 540. natrix 180. 184, 



224, stolatus 512. 

 Tropidurus 462. 

 Truncatulina227, 487, 585, 634, - - lobatula 



107, 454. 

 Trutta fario 344, 726, 727, lacustris 



727. 



Trygon pastinaca 396. 

 Trypsin 231. 

 Iryxalis 298. 



Tubella 522, pennsylvanica 587. 

 Tuben (Mammalia) 516. 

 Tuberkel (Ascalabotau) 663, (Chelo- 



nia) 663. 



Tubielava cornucopiae 637. 

 TM&i/ez 45. 



Tubularia coronata 595, tenella 339. 

 Tubularidae 339, 562. 

 Tubulose Uriiseu (i use eta) 650 

 Tunica propria (Nernatodes) 345, (Tur- 



bellaria) 695. 



Tunicata Paras. 638, - - Morph. 360, 609, 

 Muscl. 609, Nerv.Syst. 612, 



Sinnesorg. 362, Entwckl. 253, 360, 



782. 



Tupaja javanica 508. 

 Turacus 380, donaldsoni 733. 

 Turbellaria21, 43, 100, 195, 340,390,391, 



403, 463, 466, 491, 628, 688, 751, 752, 



753. 



Turbonilla 547. 



Turnagra crassirostris 441, tanagra 441. 

 Turnix 380. 



Tydeus 283, molestus 283. 

 Tylenchus 747. 

 Tylocarcinus 707. 

 Tylodina 776. 



Tylodiplax 708, - - tetratylophorus 708. 

 Tympanoceros 476, newtoni 476. 

 Tympanoptera 284. 

 Tympanuchus cupido 441. 

 Typhlacontias 790. 

 Typhlogobius 138. 

 Typkloiulus 48. 

 Typhlonemertes 146. 

 Typhlopidae 68, 224. 

 Typhlops 68, 123, 221, 790. 

 Typhlotriton spelaeus 138. 

 lyrellia 207. 



Tyrotrlyphidae 283, 535, 566. 

 Tyroglyphus 284, feroniarum 284, 



passularum 284, wasmanni 283. 



U. 



Udonellidae 699. 



Uebergangssinnesorgane 25. 



Ueberlegung (In sect a) 765. 



Ueberwiutern von Raupen 213. 



Uintatherium 478. 



Umbrella 415, 776. 



Umbrellarhohle (iScyphomedusae) 686. 



Unciforme (Mammalia) 480. 



Uncus (Insecta) 210. 



Ungeschlechtliche Kurtpflanzung (Hydro- 

 medusae) 233, 303, -- (Turbellaria) 

 463. 



Ungualia 67. 



Uiigualiiuae 69. 



Ungulata 509. 



Unio 411, 547 



Uniouidae 219, 410, 415. 



Uristerblichkeit (Proto/oa) 132. 



Unterhautbindegewebe (Pisces) 425. 



Unterirdisch lebeude Thiere (Pisces) 657. 



Upupae 542. 



Uranoscopus 178. 



Urceolaria 37. 



Urcrustaceeii 160. 



Urdarm (Amphibia) 318. 371, -- (Echino- 

 dermata) 631, ((Gastropoda) 778, 



(Lamellibrauchiata) 412, 

 (Reptilia) 795. -- (Scyphomedusae) 

 111, -- (Tardigrada) "79. 



UrdarLueinstiilpung (Reptilia) 796. 



Urdarmhohle (Mammalia) 382. 



Ureier (Aves) 624, -- (Crustacea) 552, 

 (Echinodermata) 621, - - (Mamma- 

 lia) 624. 



Ureter (Gastropoda) 579. 



Urexcretiousorgan (Treinatodes) 71. 



Uriechis 790. 



Urknospe (Tunicata) 245. 



Urmesodermzellen 402, 419. 



Urmund (Amphibia) 288, 318, 371, 658, 

 728, -- (Mammalia) 382, - - (Verte- 

 brata) 782. 



Urmundanlage (Amphibia) 658. 



Urmundrand (Amphibia) 658. 



Urmundspalte (Reptilia) 796. 



Urniere (Amphi bia) 179, --(Mammalia) 

 444, (Pisces) 55. 



Urnierengang (Amphibia) 179. 



Uruiereukanalchen (Amphibia) 179, 

 (Pisces) 58. 



Urococcyx aeneicauda 187. 



Urocyclus 330, rufescens 331. 



Urodela 88, 90, 179, 294, 318, 335. 362, 

 364, 424, 663, 727, 728, 730, 786, 787. 



Urodesmus 530. 



Urodon multipnnctatus 164. 



Urogenitalapparat (Pisces) 54. 



Uroylena 632, volvox 71. 



Urogonimus 701. 



Uromacer 223. 



Uromastix 60, 86. 



55* 



