Anderson 1956 journal Jan 31. Trip to Rio del Mar, Santa Cruz G., Corralitos & Gonzales, Santa Clara G. Left Addison St., Berkeley at 7:45 A.M., picked up T. Robinson at 7:55. Drove via Rt 17 to Rio del Mar. Much frost seen on hillsides while crossing Santa Cruz Mtns. between Fox Gates & Santa Cruz. Arrived at Rio del Mar 10:30 A.M. The pond was greatly enlarged over its size this time last year - roughly 2x the area. Bonito Rd as usual was dotted with large puddles of water. Those in the shade covered by a thin sheet of ice. We searched the margins & shallow portion of the pond for Ambystoma maculatum with no luck. Numerous masses of Hyla regilla eggs noted. Most were close to hatching. Water temp. 5.2° C. in shade about 9°C in sunny area (depth 2ft). Spent 1 1/2 hours in water then investigated oak woods on W side pond. Batrachoseps, Ensatina & Hyla regilla found but not in usual numbers. Air temp between 6-7° C. One Ensatina had cl. temp of 6.4° C. For most part the amphibians were quite sluggish. No Coniurus lugubris seen in usual haunts. No Ambystoma found. Later one active H. regilla collected at fringe of pond - bright green in color (hopping in green grass). From here we drove towards Corralitos by way of 5 mile but found all possible amphibian localities completely flooded & collecting was impossible. Returned to Hwy 1 & the beach (1:15 P.M.). Drove thru Santa Cruz & started North on Rt 9. Just past Felton we collected 3 Caneider floripendulus in a springy hillside opposite a redwood souvenir shop. Ensatina & Batrachoseps taken at fringe of springy area in slightly drier place. One Ensatina taken under a Sequoia sempervirens log in middle of seepage area near where Caneider were caught. It was quite sluggish (water temp. 11.2° C). Caneiders, however, were quite quick. When log was first moved they remained