44 PROCEEDINGS OF THE NATIONAL MUSEUM vol.82 



Occurrence. — Found in India. 



Remarks. — This species in many respects is almost identical with 

 S. lohiyes of Gurney. There are, however, minor differences in the 

 fifth feet of both sexes, and the broad third f ureal seta of S. hlng- 

 hami makes a definite difference. 



SCHMACKERIA FORBESI Poppe and Richard 



Plate 21, Figxibes 4, 5, 7 



Schniackeria forbesi Poppe and Richard, 1890, pp. 1-8, pi. 10, figs. 1-14. 

 Pseudodiaptomus forbesi Giesbrecht and Schmeil, 1898, p. 66. — Burckhabdt, 



1913, pp. 379-394, pi. HE, figs. 1-6, pi. IIF, figs. 5-8, pi. IIG, figs. 5-9, pi. 



12H, figs. 5, 6, 9.— KiKUCHi, 1928, pp. 69, 70, pi. 19, figs. 19, 20. 



Female. — The head and first thoracic segment are fused. The 

 sides of the last thoracic segment are rounded and armed with hairs. 

 The abdomen has four segments. The first three abdominal seg- 

 ments (pi. 21, fig. 7) have spines on their distal borders. The first 

 antennae have 22 segments and extend to the second abdominal 

 segment. The furcal rami are about four times as long as the width 

 and are ciliate on the inner border. In the fifth foot (pi. 21, fig. 5) 

 the two segments of the exopod are short; the first segment has a 

 spine at the outer distal angle and a hyaline plate at the inner angle. 

 The second segment has an external lateral spine, a terminal elon- 

 gated hook, and a stout dentate internal spine. 



Male. — In the fifth foot (pi. 21, fig. 4) the second segment of the 

 right basipod has two tuberous projections on the inner border. The 

 long external spine of the first segment of the exopod about equals 

 the length of the second segment. The falciform terminal hook is 

 about as long as the whole exopod. In the left foot the second 

 segment of the exopod has from its inner border a long, slender, 

 curved process projecting distal. This process has, from its base, 

 a sharp branch about one-half as long as the second segment of the 

 exopod. The second segment of the exopod is a bilobed plate. 



Length : According to Poppe and Richard, female : 1.2 mm ; male : 

 1.15 mm. According to Burckhardt, female : 1.35 mm ; male : 1.12 mm. 



Occun'enoe. — Found in China in the Yangtze Kiang and connect- 

 ing waters. 



SCHMACKERIA INOPINUS Burckhardt 



Plate 21, Figube 6 ; Plate 22, Figure 1 



Schmackeria inopimis Burckhardt, 1913, pp. 379-394, pi. HE, figs. 2-5, pi. IIF, 



figs. 1-4, 9, 10 ; pi. IIG, figs. 1-4, &-S, pi. 12H, figs. 1-4, 7, 8, 10, 11. 

 Pseudodiaptomus japonicus Kikuchi, 1928, pp. 68-70, pi. 19, figs. 19, 20. 

 Pseudodiaptomus inopinus Smibnov, 1929, pp. 318-320, figs, 1-3. 



Schmackeria inopinus resembles S. forbesi so closely that it is 

 somewhat difficult to separate them without examination of the 



