CUMACEA PEOM THE COPENHAGEiST MUSEUM. d 



Family BODOTRIIDiE. 



Genus Bodotkia. 



As I have elsewhere pointed out (Cumacea of Siboga Exped. p. 5), this genus is 

 distinguished from Cyclaspis by very slight characters, of which the chief is the 

 possession of a longitudinal lateral ridge on the carapace, and even this becomes 

 inconspicuous in some of the new species described below. 



Key to the Species of Bodotria. 



A. Endopod of uropods composed of two segments. 



a. A single lateral ridge on carapace. 



a. Lateral ridge well-marked, extending on to free thoracic somites. 



a'. Thoracic somites keeled dorsally B. scorpioides (Mont.). 



b'. Thoracic somites produced dorsally into laminar crests . . . B. gibba (Sars) . 



b. Lateral ridge faintly mai'ked on carapace, not developed on 



thoracic somites B. sublevis, sp. n. 



b. Two distinct lateral ridges on carapace B. pulckella {Saxs). 



B. Endopod of uropods unsegmented. 



a. Lateral ridge well-marked, extending on to thoracic somites. 



a. Basis of first leg (in female) H times as long as distal segments. B. arenosa Goodsir. 



b. Basis of first leg (in female) shorter than distal segments . . . B. similis, sp. n. 



b. Lateral ridge faintly marked on carapace, not developed on thoracic 



somites. 



a. Antennal tooth of carapace acute B. siamensis, sp. n. 



b. Antennal tooth of carapace rounded B. parva, sp. n. 



B. fidex Zimmer has been omitted from the key as I have seen no specimens. It 

 has the endopod of the uropods unsegmented, and the lateral ridge faintly marked 

 on the carapace but well-developed on the free thoracic somites. 



In the collection of the Rev. Canon Norman I have examined four specimens 

 labelled " Cuma folinii Fischer " from the Bay of Biscay. I have been unable to 

 discover whether any description of this species has been published. It is closely 

 allied to B. arenosa, of which, perhaps, it may be only a variety. 



Bodotria sublevis, sp. n. (Plate I. figs. 1-3.) 



Description of adult Female. — Total length 2'6 mm. 



The carapace is a little more than two-sevenths of the total length. The dorsal 

 edge, seen from the side, is nearly straight, with a slight notch at about one-third of 

 the length from the hind margin. The pseudorostrum is nearly horizontal. The 

 dorsal keel is distinct but not prominent on the carapace and thoracic somites. On 



B 2 



