JLaguna figarinc Laboratory 



last are three stiffly plumose hairs. A similar hair is placed on each 

 side of the eighth joint. Legs rather long but stout, no tibial pro- 

 cesses, very few hairs except in double row on tarsus. First coxa 

 as long as its own diameter; second twice as long; third coxa one 

 and one-half tiroes the length of the first. Femur about as long as the 

 combined length of the second and third COXJP. Second tibial joint 

 about the same length as femur; first tibial joint slightly shorter. 

 Tarsus is less than one-half as long as second tibial joint. Tarsus 

 has a double row of fine hairs down the "sole" and a few slightly 

 longer hairs on the end. Terminal claw is lacking, while the auxiliary 

 claws are unusually developed. Color light brown ; the food was 

 slightly darker making it easy to trace the branches of the stomach 

 into the legs as shown in cut. Measurements in mm. Body 1.3; 

 proboscis 1.05; abdomen .36; leg 4.2; diameter of leg-bearing pro- 

 cesses .214. 



About twenty specimens of this species were found under stones 

 at low tide, well down toward low water mark. The males bore on 

 their ovigerous legs bunches of dark colored eggs. 



As pointed out to me by Dr. Cole, this species agrees closely with 

 A. bi-unguiculata (Dohrn). As he says, "if we make the proper al- 

 lowance for his specimen being an immature one" this specimen 

 "agrees in detail with Dohrn's description." But to say that I had 

 found in California the mature form of Dohrn's Naples species (de- 

 scribed, as it was from an immature specimen), would be too much 

 of a guess without comparing mature forms from both localities. 

 This difference of location, the fact of Dohrn's specimen being im- 

 mature, and the desire not to duplicate names, have led me to de- 

 scribe mine as a variety of A. bi-unguiculata. 



Ammothella spinosissima n. sp. 



(Figure 51) 



Body with leg-bearing processes almost circular in outline. These 

 processes are grown together for nearly their whole length, and at 

 their distal ends are situated large tufts of spines. No interseg- 

 mental lines, but on the back, between the second pair of legs, is a 

 longitudinal row of three large upright spine-covered, finger-like 

 processes. (Bent to the side in the cut as are also the eye tubercle 

 and the abdomen). Proboscis shorter than the apparent length of 

 the body, but if compared with the length of the body from the 

 anterior margin to the base of the abdomen the reverse is true. This 

 is owing to the abdomen being inserted between the last pair of leg- 

 bearing processes which are the only two that are separated. The 

 proboscis is bluntly rounded in front with a notch at the tip; its 

 diameter is about half its length. Four eyes, not conspicuously pig- 



