OCR Text |
Show 76 MR. ST. GEORGE MIVART ON HEMICENTETES. [Jail. 17, posteriorly ; no cervical hvpapophvses ; spines of dorsal and lumbar vertebrae small; no hyperapophyses; autogenous hypapophysial ossicles beneath the interspaces of the lumbar vertebrae ; manubrium keeled ; scapula long and very narrow ; radius and ulna distinct; an os intermedium ; no symphysis pubis; tibia and fibula confluent below; five digits to each extremity; no caecum. Hab. Europe, Asia, including Japan, and North America. TALPINA. No distinct pterygoid fossa * ; pterygoid region inflated ; coronoid process not very elevated; spiculum of bone bounding infraorbital foramen above very narrow; as many as three incisors above; manubrium very elongated; clavicles very short and broad ; no metacromion process ; a sickle-shaped carpal ossicle. Hab. Europe, Asia, North America. TALPAf, Linnaeus. I- _J£_<_.»» C* SP' (?)P-M. g, M. 3^. Cranium very slightly constricted between the orbits; palate with no posterior thickening, but a small defect of ossification on each side; a very large pterotic ; a fissure bordering epiotic ; posterior palatine foramen large; anterior palatine foramen small; all the incisors very small; upper canine very elongated; lower canine small; posterior cusps of premolars very small. Five or six lumbar vertebrae ; caudal vertebrae few; ultimate phalanges of manus much the longest, bifurcating. Hab. Europe and Asia. CONDYLURA §, Illiger. I- 3_3> C j-___» P.M. £^, M. 3^. No fissure bordering epiotic ; meatus auditorius with a very large external opening ; muzzle much attenuated anteriorly; first and third upper incisors much larger than the second ; upper canine very small ; lower canine much larger than lower incisors ; lower third incisor much smaller than the first or second ; posterior cusps of premolars very large. Seven * I cannot be sure as to Condylura in this respect. f De Blainville, 'Osteographie: Insectivores,' pis. i., v., & ix. ; F. Cuvier, ' Dents des Mammiferes,' no. xxii.; Owen, ' Odontography,' pl. ex. fig. 3; C.' Giebel, Zeitschr. f. d. ges. Naturwiss. Halle, Bd. xii. 1858. pp. 395-450; Wagner, Schreb. Supplem. ii. p. 106, v. p. 576. X Mr. C. Spence Bate, F.R.S., in a paper read at the Odontological Society of Great Britain (published in the 'Annals and Mag. of Nat. Hist.' for June 18('7) states that the tooth here called canine is implanted in the prtemaxilla. The conflicting nature, however, of the remarks contained in that paper render other observations necessary. § De Blainville, ' Insectivores/ pis. i., v., & ix.; F. Cuvier, ' Dents des Mammiferes,' no. xxii. bis; Wagner, Schreb. Supplem. ii. p. 113, v. p. 574; S. F Baird, 'Mammals of America,' p. 71. |