Horváth Géza (szerk.): A Magyar Természettudományi Múzeum évkönyve 21. (Budapest 1924)

Éhik, Gy.: A new Vole from Hungary and an interesting Bat new to the Hungarian fauna

IfiO Dr. .). KIIIK descending below lip of foramen magnuni, the ridges, extending upward from their bases, weak, but well developed. Diameler of basioccipital, along suture (l"l inm.), contained about three times in its median length (S'4 mm.). Largest diameter of auditory bullae, from paroccipital processes to ectopterygoid pits, 6"7 mni. Interorbital region short, the minium width gieater than thal of rostrum. Zygomata -weak, the two arches nearly parallel. The greatest diameter of anteorbital foramen contained about one and one-half times in breadth of plate, forming outer wall of anteorbital canal. Nasals slightly constricted before anteorbital foramen, beyoncl this slight constriction narrowcd, their rounded and pointed posterior border extended at about level of middle of zygomatic root, the nasaJ branches of prernaxillaries extending a little further backward ; diameter of nasals along posterior suture as long as nasal branches of premaxiliaries froni outer corner of fronto-nasal suture hackward. The greatest combined breadth of incisive foramina 0*9 mm. : their greatest diameter 3*7 mto. Palate with well marked lateral grooves : the lateral pits are large and deep ; their transverse diauieter closc to the sloping portion of median ridge 0'6 mm.; their greatest longitudinal diameter 1*8 min., pterygoids nearly parallel, thc liamulars very slightly turned outward, mesopterygoid space rounded in front; ectopterygoid pits relatively large, their anterior parls widely rounded off. Mandiblc slender, its portion in front of moJars nearJy equal with the length of \n

u Coronoid process Jarge and weak, its extremity rising to level of condyle ; their anterior margins rising nearly at riglit angles to level of triturating surface. Articular process abruptly bent inward at Jevel of base of incisor. Angular process weak, but well developed, curved strongly outward. Teeth. — Upper incisors strongly curved, the rools forming sliglit protuberances in infraorbital foramina, its anterior surface not visihle when skull is viewed from above; cross section of shaft obscurely Iriangular; a deep subapical notch is present. Lower incisors slender, Iheir roots extending into bases of articular processes but not forming noticeable protnberances on outer surface of mandible; cross section of shaft more triangular. Crown of third upper molar very slightly longer than tliat of second. First outer triangle of m

8 opening into inner triangle but its apex on the same level with that of anterior loop and second triangle; on its terminal loop the posterior inner reentrant angle as wide as the other, but the incurved portion is shorter. M

1 and m

2 like with Pitymys subterraneus. The third inner reentrant angle of the first lower molar fails to penetrate till the enemal wall of opposite side of tooth, thus a broad area of communieation being formed between first inner