| OCR Text |
Show The probable affinities and phylogeny of the principal forms of the Rh. lepidus group are expressed in the subjoined diagram (Ethiopian types marked with an asterisk) :- 138 MR. K. ANDERSEN ON BATS [May 16, euryale. III. T h e R h in o l o p h u s m i d a s G r o u p . Diagnosis. Cochleae large, making the basioccipital, between them, extremely narrow (linear). Posterior connecting process very low and rounded off. 26. R h in o lo p h u s m id a s , sp. n. (Plate IV. fig. 20 «, b, c, d.) Diagnosis. Sella almost deltoid, summit rounded. Forearm 37'7 mm. Details. Horse-shoe as broad as the upper lip; no " tooth" on the sides of the median notch; no crenulation of the border. Lateral margins of sella converging from base to tip ; breadth at base (2‘3 mm.) much more than half the vertical height of the sella (3'5 mm.); a very slight (rather easily overlooked) constriction at the middle; summit rounded (breadth l'6mm.). Connecting process very low, and broadly rounded off. Lancet long (4 mm.) and cuneate. One mental groove only. Ears a little longer than in minor, outer margin immediately below the tip somewhat more emarginate; tip more distinctly pointed. Wing-structure, compared with that of minor, considerably structure, and tho mental grooves (Andersen, Ann. & Mag. Nat. Hist. (7) xvi. Sept. 1905, pp. 291-92). Rh. maclaudi is an Ethiopian representative of the Rh. philip-pinensis group, but on a considerably higher stage of development in the same respects as the species just named (Id., tom. cit. Aug. 1905, pp. 254-55). Ibis completes the account, showing that all the Ethiopian Rhinolophi, without exception, are o f Oriental origin. |
