-
| 
-
| 
-
|
-
| 
-
| 
Keep's chiton (Cyanoplax keepiana)
|
-
| 
-
| 
-
|
-
| 
Californiconus californicus (California cone snail)
| 
-
|
polyclad flatworm (unidentified)
| 
-
| 
This is a member of the crab family, Xanthidae, known as a
nine-tooth pebble crab (Cycloxanthops novemdentatus),
was kindly identified by crustacean expert, Dr. Greg Jensen. It was common in the La Jolla
area, but occasionally found as far north as Monterey, when Ed Ricketts wrote about it in 1932 for the first edition
(published in 1939) of his classic co-authored book, Between Pacific Tides. Even earlier
in 1912, C.F. Baker
listed it as common in Laguna Beach under stones between tides. Still, there does not seem to be very much on this crab's natural history, with most
published accounts having more to
do with its occurrence, systematics, and some about its reproductive season in southern California.
|
-
| 
-
| 
-
|
Kellet's whelk (Kelletia kelletii)
| 
-
| 
-
|
Multiple Lottia sp. B (with my former student, we are splitting off this species
from the more southern L. strigatella) settled on a Norrisia norrisi (Norris's top snail)
| 
-
| 
tentative: Crepidula onyx
|
-
| 
-
| 
Pteropurpura festiva (festive murex)
|
-
| 
-
| 
-
|
-
| 
Lepidozona pectinulata
| 
-
|
warty sea cucumber (Parastichopus parvimensis)
| 
-
| 
-
|
-
| 
-
| 
This shrimp is either Betaeus macginitieae is either B. harfordi,
identified from these images by crustacean expert, Dr. Greg Jensen. Shrimp species in this genus are well known to form mutualistic
associations with other species, and these species differ in their preferred host species, B. macginitieae associated with
any of the seven abalone species native to California, and B. hartfordi associating with usually red urchins, but sometimes purple urchins
(Ache and Davenport, 1972).
|
-
| 
-
| 
-
|
-
| 
The lower snail is Volvarina taeniolata (California Marginella)
| 
a still smail giant rock scallop (Crassadoma gigantea)
|
green abalone (Haliotis fulgens) juvenile
| 
-
| 
-
|
-
| 
-
| 
an isopod in the genus Idotea
|
Metandrocarpa taylori (Taylor's social tunicate)
| 
A still-small Stenoplax conspicua
| 
purple urchin (Strongylocentrotus purpuratus)
|
scaled tubesnails (Thylacodes squamigerus) under a ledge
| 
-
| 
-
|
among other animals under ledge, shredded wheat worm (Salmacina tribranchiata)
| 
-
| 
-
|
-
| 
Kellet's whelk with two slipper limpets (Crepidula ?onyx)
| 
-
|
-
| 
an unusual intertidal find, the normally subtidal Maxwellia santarosana
| 
-
|
-
| 
-
| 
-
|
Callistochiton decoratus
| 
-
| 
juvenile Tegula eiseni and Cyanoplax keepiana (Keep's chiton)
|
-
| 
This small porcelain crab is likely a Petrolisthes cabrilloi,
according to crustacean expert, Dr. Gregory Jensen. This species is apparently more tolerant of sand and muddy water than
other California species of this genus (Source).
| 
-
|
pair of Roperia poulsoni (Poulson's rock snails), one with a slipper limpet
| 
-
| 
-
|
-
| 
Lepidozona pectinulata
| 
banded brittle star (Ophionereis annulata)
|
-
| 
-
| 
-
|
northern clingfish (Gobiesox maeandricus)
| 
-
| 
-
|
-
| 
-
| 
-
|
mossy chiton (Mopalia muscosa) in middle,
with Hartweg's chiton (Cyanoplax hartwegii) on left
| 
-
| 
Mopalia muscosa (mossy chiton)
|
-
| 
-
| 
-
|
-
| 
-
| 
Tentative, Pacific oyster (Crassostrea gigas)
|
-
| 
-
| 
-
|
-
| 
-
| 
-
|
-
| 
-
| 
-
|
-
| 
-
| 
-
|
-
| 
Northern spiny chiton (Nuttallina californica)
| 
-
|
-
| 
-
| 
-
|
red urchin (Mesocentrotus franciscanus)
| 
-
| 
-
|
a still-small Megastraea undosa (wavy turban snail)
| 
-
| 
-
|
-
| 
-
| 
-
|
-
| 
-
| 
-
|
-
| 
-
| 
-
|
-
| 
-
| 
-
|
Under Construction!