A Description of the Stages in the Life Cycle of the Filarial Worm Litomosoides carinii

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Abstract
The stages are essentially similar to those previously descr. for related spp. The first molt occurs at about 9 days and the 2d at about 13 days at temps. averaging 18-24[degree]C. The 3d stage larva usually attains its max. development in the mite (Bdellonyssus bacoti)in another 2 days and when transferred to the cotton rat continues to develop for about a week with slight increase in size. The molt from the 3d to the 4th stage is descr. for the first time. Considerable growth occurs during the 4th stage and the 4th molt is reached in about 24 days. The sclerotized stoma is a characteristic feature by which the 3d, 4th and adult stages can be distinguished. Since this is the 1st sp. among the filarial worms for which all stages and molts are descr., it is of interest that the typical stages of the life cycle conform to those of other nematodes.
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