Search found 841 matches

by Greg Jensen
Fri Jan 25, 2008 8:29 am
Forum: Critter Watchers - PNW Marine Life
Topic: Future Babies
Replies: 13
Views: 1345

Both species of snails are visible in this view.
by Greg Jensen
Wed Jan 23, 2008 5:03 pm
Forum: Critter Watchers - PNW Marine Life
Topic: Future Babies
Replies: 13
Views: 1345

Actually it's a mix of leafy hornmouth (Ceratostoma) and Nucella lamellosa egg capsules. The Nucella are towards the lower left, while the Ceratostoma are filling the upper right. You can see the flattened, curled shape.
by Greg Jensen
Wed Jan 23, 2008 9:58 am
Forum: Critter Watchers - PNW Marine Life
Topic: Crab ID
Replies: 11
Views: 1141

Definitely a Loxorhynchus. Surface of the carapace looks like L. crispatus, but there appear to be some spines along the edge which are present only in grandis. Or it could just appear that way due to decorations. You may find crispatus up here in our area. Since my book came out, they have turned u...
by Greg Jensen
Wed Jan 23, 2008 9:31 am
Forum: Critter Watchers - PNW Marine Life
Topic: Hermit Crab Getting Into His Shell
Replies: 5
Views: 772

Yep, it's a hirsutiusculus. Main reason most divers don't see it very often is because it's an intertidal species, living where we're putting on our fins rather than where we're looking.
by Greg Jensen
Tue Jan 15, 2008 9:00 am
Forum: Critter Watchers - PNW Marine Life
Topic: Am I a Cucumber?
Replies: 4
Views: 939

yep, same thing as your previous post, except with its tentacles retracted.
by Greg Jensen
Tue Jan 15, 2008 8:59 am
Forum: Critter Watchers - PNW Marine Life
Topic: Echinoderm?
Replies: 3
Views: 793

Feeding tentacles of a sea cucumber, Cucumaria miniata.
by Greg Jensen
Wed Jan 09, 2008 1:49 pm
Forum: Critter Watchers - PNW Marine Life
Topic: is this a masking crab?
Replies: 10
Views: 1219

I've been working on a new edition for quite a while- it will add about 60 more species, including several that I've described and named since the first edition came out, plus 'new and improved' pictures. The catch is that the present batch have to sell out before the publisher will do another editi...
by Greg Jensen
Tue Jan 08, 2008 12:23 pm
Forum: Critter Watchers - PNW Marine Life
Topic: is this a masking crab?
Replies: 10
Views: 1219

Click on my website button and you might get some ideas :book:
by Greg Jensen
Mon Jan 07, 2008 1:20 pm
Forum: Critter Watchers - PNW Marine Life
Topic: is this a masking crab?
Replies: 10
Views: 1219

It's either a juvenile or a female. Females have small claws, as do males until they reach sexual maturity.
Like other spider crabs, once they molt to sexual maturity, they never molt again. But it's not clear what determines the size that they become sexually mature. Some do it at 5mm, some at 45mm.
by Greg Jensen
Sun Jan 06, 2008 4:26 pm
Forum: Critter Watchers - PNW Marine Life
Topic: is this a masking crab?
Replies: 10
Views: 1219

No, it's an adult male sharpnose crab (Scyra acutifrons).
by Greg Jensen
Fri Jan 04, 2008 4:00 pm
Forum: Critter Watchers - PNW Marine Life
Topic: Critters ID? (help)
Replies: 6
Views: 1022

Yep, same thing.
by Greg Jensen
Fri Jan 04, 2008 11:07 am
Forum: Critter Watchers - PNW Marine Life
Topic: Critters ID? (help)
Replies: 6
Views: 1022

Correct on the first one (Heptacarpus brevirostris). The second is a deep blade shrimp, Spirontocaris prionota. It's sitting on a hermit crab, Pagurus caurinus.
by Greg Jensen
Sun Dec 30, 2007 4:37 pm
Forum: Critter Watchers - PNW Marine Life
Topic: Green sea turtles in Alaska
Replies: 3
Views: 829

They turn up in Washington and BC every once in a while, so Sitka doesn't seem out of the question.
by Greg Jensen
Mon Dec 17, 2007 12:24 pm
Forum: Critter Watchers - PNW Marine Life
Topic: Scaly Lithodid? And a mystery fish!
Replies: 22
Views: 3104

They are very interesting fish- very common under rocks at low tide, so lots of them are shallower than where divers are usually looking. As juveniles they feed on things like small crustaceans, but as they mature they develop specialized, wedgelike teeth that they use to pop off and eat limpets. Th...
by Greg Jensen
Wed Dec 05, 2007 10:11 am
Forum: Critter Watchers - PNW Marine Life
Topic: Scaly Lithodid? And a mystery fish!
Replies: 22
Views: 3104

Yes, it's a Placetron. If this was by Alki then it's the furthest down into the Sound that I've heard of one.
The fish is a snake prickleback.
by Greg Jensen
Fri Nov 16, 2007 12:37 pm
Forum: Critter Watchers - PNW Marine Life
Topic: Help with dungies
Replies: 4
Views: 937

Help with dungies

Hi all sorry for the cross-posting, but I'm trying to reach as many critter-savvy divers as possible. This is the time of year when female dungeness crab extrude their egg masses and bury themselves in sand or mud while they incubate their brood. There are certain areas (e.g., Mukilteo, right where ...