6 9 



The septa are arranged in five complete cycles as is shown in the diagram (fig. 9). The 

 septa of the first and second cycle are slightly exsert. They have the same shape, only those of 

 the first cycle are a little broader than those of the second. The upper half of 

 these septa bends gradually downwards acquiring a breadth cf one-third the 

 calicular diameter; the lower half falls perpendicularly downwards. The septa 

 of all cycles have the edge entire, the septal faces are covered with granules 

 arranged in regular rows parallel to the edge and possess obvious striae. 

 The septa of the fourth cycle may or may not join those of the third cycle. 



The columella is small, its length being about one-fourth that of the calicle, formed by 

 thin, twisted, coalescent lamellae, and prominent. The depth of the calicular fossa in the biggest 

 specimen is S mm. and in the smallest 3 mm.. 



3. Leptopsammia crassa nov. spec. (Plate VIII, fig. 11 and 12). 

 Stat. 258. Tual-anchorage, Kei-islands. Depth 22 meter. 1 ex. 



This specimen is irregularly shaped ; it is attached at one side and has thirteen principal 

 septa. It increases in diameter from the base to the top; the diameter is 6 mm. near the base 

 and the diameter of the calicle is 12 >( ] o mm.. The basal portion is covered with a thin epitheca. 



The ribs are very indistinct, slightly projecting with shallow furrows between them. They 

 are formed in the under portion of the corallite upwards to about four millimeters from the 

 calicular margin by rows of fine, regular granules, with pores on the ribs and in the furrows. 

 The uppermost portion of the corallite is covered with rough, irregular granulations and has 

 irregular, large pores ; in this part the ribs are nearly invisible. 



The edge of the calicle is thickened, but the septa are thin over their whole extent. 

 They are irregularly arranged at one side as is shown in the figure. They are not exsert. 

 Those of the second cycle are equal to those of the first one. There are small teeth on the 

 edge and very few small granules on the sides. They curve gradually downwards to about 

 one-third of their length and one-third of the calicular diameter, then they fall perpendicularly 

 to the interior. The septa of the third cycle are much smaller, with irregular teeth on the 

 edge. Those of the fourth cycle are hardly present, very small, and with one exception not 

 united with those of the third cycle. 



Columella rather small, about three mm. long, prominent, formed by a twisted lamella. 

 The depth of the calicle is 6 mm.. The shorter axis of the calicular margin is on a slightly 

 hiorher level than the longer axis. 



4. Leptopsaiumia poculum nov. spec. (Plate VII, fig. 7). 



Stat. 260. 2.3 miles N., 63 W. from the North-point of Nuhu Jaan, Kei-islands. Depth 

 90 meter. 1 ex. 



The corallum is attached by a stalk to a slightlv enlareed base. This stalk is 8 mm. 

 long and three mm. thick. Then the diameter increases rapidly to 6 mm.. The upper part is 

 cylindrical, the calicle round. No epitheca. The ribs are broad and fiat, separated by narrow, 



