4 SlDEBOTTOM, Foraminifera from the Island of Delos. 



the test. Five were found, of which four are three- 

 chambered. The test is compressed, and the orifice, 

 which is very minute, is apparently situated between the 

 keels as shown in the end view. The shell figured is the 

 largest of the set. Very rare. 



Lingulina armata, n. sp. (PI. i, fig. 21). 



The test of this minute species consists of two 

 chambers, both of which are compressed, the primordial 

 one being armed with small spines along nearly the whole 

 of its periphery. The second chamber is narrow and the 

 orifice oval. In all cases there is a short entosolenian 

 tube This interesting little foraminifer may be an 

 arrested form (or even a double Lagena staphylleared). 

 Six specimens occur. Very rare. 



* Lingulina pellucida, n. sp. (PI. 1, figs. 22-25). 



Primordial chamber oval, round in section, the follow- 

 ing chamber slightly embracing it. This second chamber 

 larger, compressed, and on either side at its base, armed 

 with a small spine. Aperture oval in a phialine neck. 

 Sometimes a third chamber is added, either slightly 

 embracing the second chamber as in figs. 24, 25, or 

 separated from it merely by the phialine neck of the 

 latter, whose lip is only embraced, see fig. 23. This lip is 

 visible inside the third chamber. Three examples like 

 fig. 23 occur, and only in one case are the spines present 

 on the third chamber. Eight similar to figs. 24, 25, were 

 found, and about one hundred and fifty like fig. 22. 

 Mr. Millett in his Malay Report (:o2), p. 524, states that I 

 had written to him saying that I had found six specimens 

 of the three-chambered variety. This was evidently an 

 error on my part, eleven being the correct number, three 



