M. E. Leuckart on the Genus Notopterophorus. 357 



at this point, a great mass of eggs, which are characterized by a 

 grass-green colour (brownish, according to Costa), and shine 

 through the outer coverings. According to Krohn, these eggs are 

 contained in the oviducts, which open here (above the abdomen). 

 The ovaria, with their very numerous small ova, lie, in the form 

 of one or two pair of sacs, in the lateral parts of the body, where 

 they may be traced, partly beside and partly above the intestine, 

 nearly to the head. 



The nutritive canal is a brown tube, somewhat broader in the 

 thorax than in the abdomen, and without appendages. The 

 central nervous system consists, as stated by Krohn, of an 

 elongated ganglionic mass, situated in the anterior part of the 

 thorax, from which a number of nerves proceed, of which two 

 stems, distinguished by their length and thickness, may be 

 traced into the abdomen. 



According to Costa' s figure, the embryos have the ordinary 

 Monoculus-form ; they were not observed by me. On the other 

 hand, along with the full-grown animals, I twice met with a 

 wingless individual of about one-half their size. Whether this 

 represents the male form, or merely an earlier stage of develop- 

 ment, I must leave undecided. 



As regards the affinities of our Crustacean, there can be no 

 doubt that it evidently belongs to the group of the Parasitic 

 Crustacea. Still I scarcely think that it can be arranged in 

 any of the families already established in this group. The 

 only form which comes near our animal is Allman's Noto- 

 delphys, described by him as a Lophyropod. (Annals and Mag. 

 Nat. Hist. 1848, xx. p. 1.) But, according to Peters's Report, 

 which is the only record now before me, Notodelphys* is di- 

 stinguished (without taking into consideration the statements 

 regarding the structure of the mouth) especially by the absence 

 of the dorsal leaves. The thorax also appears to be differently 

 constructed, and perhaps disturbed in its normal development 

 by the enormous size of the brood-sac, in the same way as in 

 the species represented by Costa in plate 7. figs. 1 & 2 (which 

 may be identical with Notodelphys ?). 



EXPLANATION OF PLATE XVI. B. 



"Fig. 1. Notopterophorus Veranyi. 



Fig. 2. The same (from Krohn's drawing). 



Fig. 3. Anterior antennae. 



Fig. 4. Posterior antennae. 



Fig. 5. Mandible with attached palpus (?). 



Fig. 6. Last jaw. 



Fig. 7. Leg. 



* The generic name Notodelphys has since been used a second time for 

 the American Pouched Frog discovered by Weinland and Lichtenstein 

 (IV. Lichtensteinii}. 



