Order Soricomorpha Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1 220 311 book chapter 0-8018-8221-4 10.5281/zenodo.7316519 Crocidura grayi Dobson 1890 Crocidura grayi Dobson 1890 , Ann. Mag. Nat. Hist., ser. 6, 6: 494 . Type Locality: Philippines , Luzon. Vernacular Names: Luzon Shrew . Synonyms: Crocidura halconus Miller 1910 . Distribution: Luzon and Mindoro faunal regions, Philippines , in primary forest from 250 to 2400 m . Conservation: IUCN – Vulnerable. Discussion: Heaney et al. (1987) included halconus as a synonym. Revised by Heaney and Ruedi (1994) .