Poniona C<illege, ClareniDiit, C:ilit<jrnia 41 



fmind. The chelipcils are very rough and tlie organic growth which covers them 

 renders them ditticuh to delect frntn the surroimdings. Fig. IS gives a good idea of 

 their form. 



/*. riiilis Stimp. 

 This has the right claw large. 



Ilcrhslia fiurrifroiu Rand 



Only three, two adults and one young, of these virere taken during the summci, 

 but on a visit to the same beach in November I found them very numerous under 

 stones at medium low tide. All were young, however. Figs. 19 and 20 show the 

 atiult male, and young. 



Priia (laiisa Rath. 



Fig. 21 shows an adult with legs extended, a position in which it is seldom 

 found. These sluggish creatures live under stones at low tide and if found at all 

 usually have their legs closely folded to them. The entire animal is covered by a 

 dense coat of organic growth. 



Loplidpanopeus leucomanus Lock. 



This species mentioned in Prof. Hilton's paper is figured herewith. Fig. 22 is 

 an adult female. Fig. 23 is young. This species, though generally of a uniform dull 

 brownish color, shows in the young many variations. The carapace is often marked 

 with blackish or white patches of various patterns. Fig. 24 is illustrative of this. 

 Within the dotted lines was very dark pigment, while the lateral patches were almost 

 white. 



Pugettia Jalti Rath. 



Common in 5-20 fathoms. This species exhibits great variation as is shown by 

 the accompanying figures. Figs. 25 and 26 are adult males. Figs. 27 and 28 are 

 adult females. They vary greatly in color and are generally decorated more or less. 

 Fig. 29 illustrates a specimen which was determined, by the U. S. Museum, as a 

 variety of this species. The carapace of P. dalli is always set with stiff recurved 

 hairs, of which there are two rows on the rostral spines and other scattered singly 

 or in groups over the carapace and legs. 



Piiijcltht ricliii Dana 

 Fig. 3rt represents an adult female. But few of these were taken. 



I'inuixa Idiiijipes Lock. 

 This very odd looking little crab inhabits the sand tubes of Clymenella, which 

 are very abundant on the sand bars exposed at low tide near the outlet of Balboa 

 Bay. One or two of the crabs were foimd in almrst every tube examined which con- 

 tained a worm. The very peculiar form into which this species has developed, as 

 shown in Fig. 31, fits admirably for this commensal life. 



I'inuixa tilloralis Holmes 

 The only specimen was an imperfect one shown in Fig. 32. It was found clinging 

 to the outsitle of the slime tube of Cerianthus in Balboa Bay. 



Cancer aniennarius Stimp. 

 Fig. 33 represents a yoinig specimen, 4 cm. in width. The hairiness of the carapace 

 is in marked contrast to the smootli condition of adults. Drawn bv Esther Funk. 



