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Show 7 indistinctly defined Polyzoniida pieces Gnathochilarium possessing most of the parts typical of the Diplopoda 3 Order Platydesmida. 13a. 'Gnathochilarium consisting of . 13b. . . . . • • . . . . . . . . a • . single plate . . . . . or of several 2 Order . . . . '. . . . . . . . . • • . ........• • . . • . . . • . . . . • . •.....•.••.. . . . . . • . . . . • . . . . Of the groups given in the key above, the subclass Pselaphognatha with order Polyxenida, orders Glomeridesmida, Striariida, Lysiopetalida, Stemmiulida and Julida of super order Helminthomorpha, and the order-s Siphoniulida and Platydesmida of superorder Colobognatha, are not represented in this collection from the From the the Philippine Islands. Zoogeographical Point of View It is the purpose in this section to make a brief survey, zoogeographical point of species which are found in these islands from the following five categories: (1) view, of Species Philippines; (2) Endemic species occurring in two or more (3) Species widely dispersed in the Indomalayan subregion in Sumatra or in Java or in Borneo or in Malacca; (4) Species widely dispersed in the Oriental I or Australian realms; (5) Cosmopolitan species. (1) Species endemic to one subdivision: 39 species out of 54 known Philippine species or endemic to one subdivisions of subdivision of Philippines; - about 72.2 percent fall into their subdivision according to present evidence. endemic to two or more subdivisions: '8 species out of 54 or about 14.8 per cent, are known from two or more subdivisions. In total, the endemic species of Diplopoda constitute a little over nine-tenths of the Diplopods known from these islands. (3) Species widely dispersed in. the Indomalayan subregion, occurring in such areas as Sumatra, Borneo, Java and Malacca. No species found in the Philippines is known to occur in Sumatra and Malacca. Five species out of 54 are common to the Philippine Islands and Borneo, and Java. About 9.2 percent of the species fall into this category. (4) Species widely dispersed in the Oriental and Australian regions. Not a single species has thus far been found occurring both in the Philippines and Australian regions. Only one species found in the Philippines has also been found elsewhere in the Ori ental region. This is about 1.88 percent of the total. (5) Cosmopolitan species: No species of Philippine diplopods so far reported has a cosmo politan distribution. The remarkable specialization of the fauna in the Philippines, demanding a long period for its accomplishment, indicates that this group was earlier separated from the continent than any of the Sondaic Islands, as the deep water in its neighborhood would also imply. (2) Species Mfinities of (1) Orders, Diplopoda of the Philippine Islands families and genera represented in the with the Faunae of Other Countries Philippine fauna. There are seven orders represented; namely Glomerida, Polydesmida, Spirobolida, Spiro strepsida, Cambalida, Chordeumida and Polyzonida. All of these also occur throughout the Indomalayan subregion, with some members widespread. The family Sphaerotheridae is spread over the Ethiopian, the Australian and the Indomalayan regions and subregions. Five of its genera, namely, Zephronia, ,Sphaeropoeus, Castanotheroides, Castanotherium, and Luzonosphaera are found in the Philippine fauna. The genus Zephronia is especially abundant in the Oriental region, 26 species occurring in India, 9 species in Burma, 7 species in Ceylon, 4 species each in Borneo, Sumatra and the Malay Peninsula, 2 species in Java, one each in the East Indies, the Philippines, Celebes and in the Australian region. The |
