The same ratios hold for foreign and domestic species. Although invertebrate species are far more numerous than vertebrates in nature, only 50 make the list (23 arthropods such as the tumblebug and the Papilio xuthus, and 27 mollusks, all foreign pearl producers). As for fish, which are vertebrates, only 16 species both foreign and domestic are included on the list.
至於動物界的大多數﹘﹘無脊椎動物，上榜的只有五十種（二十三種節肢動物，如金龜蟲、鳳蝶，與二十七種軟體動物，全數為國外的珍珠貝）；脊椎動物中的魚類，土、洋相加，更只有十六種，可以說是滄海一粟，在名單上聊備一格。