Studies in Laguna Beach Isopoda IIB 
BLANCHE E. STAFFORD, M. 58. 
Tylos punctatus Holmes and Gay 
(Fig. 6) 
Locality—Found in the sand at Laguna Beach; on being 
alarmed they rolled up in a compact ball. 
Color—Gray, spotted with white. 
Figure 6. Tylos punctatus Holmes and Gay. Lateral and dorsal views. 
Body oblong and very convex, manifesting very perfect ability 
to contract in the form of a ball. Covered with many minute 
spines. About twice as long as wide, 7 mm. by 3 mm. (measure- 
ments of a small specimen). 
Head with lateral lobes produced into triangular projections 
in front of eyes. Eyes round and composite, situated post- 
laterally. First antenne rudimentary, scale like. Second 
antenne has peduncle of five articles: first three broad; first and 
