Xiphophorus (zifoforus)

[NL. (Haeckel, 1848), IMG:content-2649.jpg:[blocks in formation] under horseshoe- crab. Xiphydria (zī-fid' ri-ä), n. [NL. (Latreille, 1802), White-horned Camel-wasp (Xiphydria alb i corn is ), female, twice natural size. siderably exserted, the neck elongate, and certain peculiar venational characters. Ten North American and three European species are known. X. camel us and X. drome dari us are British species, known as camel - wasps from long neck. The white-horned