SALENIA CINCTA. 57 



to their nearly straight outer sides they scarcely project beyond the general 

 line of the genital ring. 



The tridentate and quadridentate pedicellarise are entirely wanting in 

 all the specimens examined. The ovoid pedicellariaa are very small, the 

 valves (PI. 45, fig. 23) less than .20 mm. long and the stalk little longer ; they 

 are very scarce, and appear to be confined to the vicinity of the actinostome. 

 The globose pedicellariae are also very small, the valves (PI. 45, fig. 22) 

 measuring only .15-.25 mm., but the stalk is in proportion noticeably long, 

 .25-50 mm. They are rather infrequent, occurring only near the ocular 

 plates, along the ambulacra and on the actinostomal plates. 



This species was collected at the following stations : 



Station 4893. Southwest of Goto Islands, Japan. Bott. temp. 55.9°. 

 95-106 fathoms. Gy. s. br. sh. p. 



Station 4894. Southwest of Goto Islands, Japan. Bott. temp. 55.9°? 

 95 fathoms. Gy. s. br. sh. p. 



Station 4895. Southwest of Goto Islands, Japan. Bott. temp. 55.9° ? 

 95 fathoms. Gy. s. br. sh. p. 



Station 4934. Off Kagoshima Gulf, Japan. Bott. temp. 56° ? 103-152 

 fathoms. Rky. 



Station 4936. Off Kagoshima Gulf, Japan. Bott. temp. 60.6°? 103 

 fathoms. St. 



Bathy metrical range, 95-152 fathoms. Extremes of temperature, 60.6° ?- 

 55.9°. Twelve specimens. 



Salexidia. 



Pomel, 1883. Class. Meth., p. 94. 



Type-species, Salenia gihba Agass. 1838. Mon. d'Ech. Viv. et Foss., I, p. 13. 



Upper Cretaceous and Tertiary Salenidse. 



Salenocidaris. 



A. Agassiz, 1869. Bull. M. C. Z., I, p. 254. 

 Type-species, Salenocidaris varispina A. Ag., 1869. Bull. M. C. Z., I, p. 254. 



Recent Salenidse. 



Four valid species of this genus may now be recognized, although they 

 are very closely related, and young specimens are very difficult to identify. 

 In the order of their discovery these species are as follows : S. varispina 



