i ! 



398 UULLUTIN 31, UNJTKD «TATi:8 NAllOiNAL .MU«liUM. 



liana r('/\/;(H/((H(i Lniii., Syn. Rcpt., p. HI. 



liana jKilusiri. (iiK'^riii, Icoiioj;!-. Iicpl., Pl/Jfi, fig. 1. 



Iliiiia oxiirhiihchuH Mallow., I'loccrd. Ac. I'liilii. (IS.'iC), p. 115. 



Uana lialuiidiiri Ualid, II. S. .\Ii'x. IJoiiml. .*^iirv., IJopl., p. 'J7, IM. ;$(!, ilg. 7-10. 



Voiiioriiioi teeth in two seiircel.v ui>lit|iie jiioups between tlie elioaiiro. 

 Head iiitxleiate; snout ratlu-r pointed; inteioiitital si)a(!e liaU'a.s broad 

 as the upper eyelid; tympanum distinet, nearly as larjje as tlie eye. 

 Fin;jfer.s nu)derate, llrstextendiu};' beyond seeond; toes not quite webbed 

 to the end ; snl>artienlar tid)ereles of" linfjeis .and toes well developed; 

 inner metatarsal tubercle very small, blunt ; no outer one, Tin' hind 

 limb being carried forward along the bodv, tin.' tibio taisal artienhi- 

 tion reaches nearly the tip of the snout. A prominent, inirrow, gland- 

 ular lateral told. Olive or grayish-brown, »'lianging to green, above, 

 with regular oval or roundeil, medium-sized, daik brown, light edged 

 spots; legs ero.ssbarred ; beiu'ath imnnu'idate. Male with two gen- 

 erally well-developed voeal sacs. North ami Cei.tral Anu'rica. 



There are ft)ur subspecies of the liana ririNccus, which i)ass into each 

 other by occasional internu'diate specimens. They dilfer as Adlows: 



Head cntiTiiiK length of licail ami Ixidy 1 wo ami a liaif or less I lian tliieiv tiiiu's ; iiufU'H 

 with iNtt'i'iiai vt'siclt'H; iiiii//l(^ iiioii' aciimiiiatr ; no cidss-liais on tiliia; Npots 

 Hnialler Jl. r. KjilniiocrplKila. 



Head entering length of head and tiody two and a half to nearly three tiines ; no ex- 

 ternal MX'al \('sieh's; niu//le more or le.-<s aeiimiiiate; siidts less distinct; tihiit 

 generally ernss-liarreil; no longitndiniil hand in front of temiir. . . A", r. nuHtricola. 



Ilc.id ncunMiiate hnt shorter, entering the length three times; males with externiil 

 vocul vesicles; iipots smaller, nit si di -' iiictly yellow 'K>nlere<l; cross-hars of 

 tlhiii generally interrupted; a longii luliiial hand on the front of the lliigli. 

 A', r. rircHci iia, 



HeadHhortiir and inoro obtuse, entering the length threes iiud a half times; males witlj- 

 oiit or with rndimeiital external xucat vesicles; dorsal spots larg<'r, withdy yellow 

 bordored ; tibial eross-hamls <'omplete ; no longitudinal hand on the fionl of tliu 

 thigh II. V. hvavliycviihala. 



The last-named subspecies is the oiu' I called li.v. bcrlanderi, hwt it 

 turns out that the typitial si)eciinens » ' that species belong to the sub- 

 species Virescens. The hitter is tlni liana iitricularia of Harlan, but it 

 is also the true R. viresecnn of Jvalm. 



The characters which distinguish the id)ove snbsi)ecies iire not with- 

 out excei)tions. Some si)eciinens (No. i;!,'}?-) from Wheatland, Ind., 

 are intermediate in the length of the head between the longer and 

 shorter forms. Qnitt; trustworthy is the non-barring of the tibia in 

 separating the /i*. /•. sphenovephala, but it is less constant in the R. v. 

 virescens. Thus in the K. r. vin'svens two specimens (.'5131) from Saint 

 Louis, Mo , aiul one (">t'J!)) from (irand Detour, 111., have two complete 

 tibial cross-bars, and No. .'>;}().'{ has three; No. lOOtG has only one. In 

 the R. r. brarln/cephala tliere tire two or thiei! siitdi bars, but in the fol- 

 lowing specimens there is but one complete, or all iwo inteirupted: Nos. 

 4794, 34'i7, .3418, IMMJS, 849!), 1 1!)J»). The spots are siniiller, and like the 



