Two barnacles removed from a rock. The barnacle on top has been fertilized and the eggs are compressed into yellow pellets on either side of the body. The penis is sticking out from in between. The barnacle below has not been fertilized; the un-fertilized eggs are large yellow blobs. The testes are visible in both . . . → Read More: On the study of crustaceous genitalia
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By Dr. M, on  May 20th, 2009  11 comments  Adaptations, Mating & Reproduction, Organisms  Barnacle, chemical signals, competition, Crustacea, Eric Charnov, evolution, Hermaphrodites, Matt Hoch, Penis, Sex Week, sperm, thesis By Dr. M, on April 15th, 2009 12 comments New Research, Opinion & Editorial, Organisms, Scientist!, Seeps, Vent, & Whale Falls Arthropoda, Crustacea, Hydrothermal Vent, molecular phylogeny, scientific article, Shrimp, species Kevin described a new species today. What have you done? KZ is now among the scientifically published. Occurring this week in the Proceedings of the Biological Society of Washington is “A new species of Alvinocaris (Crustacea: Decapoda: Caridea: Alvinocarididae) from hydrothermal vents at the Lau Basin, southwest Pacific, and a key to the species of . . . → Read More: Kevin Zelnio…New and Improved…Now With 30% More Shrimp!
By Dr. M, on March 23rd, 2009 2 comments Adaptations, Biology, Geology, New Research, New Species, Organisms, Paleobiology Anomalocaris, Arthropoda, Burgess Shale, Cambrian, carapace, claws, Crustacea, evolution, fossil, Hurdia, jaw, segmentation, soft parts, teeth Illustration of Hurdia victoria by Marianne Collins. This marine predator lived 500 million years ago and reveals clues to the origins of arthropods. © J B Caron Royal Ontario Museum Anomalocaris ruled the Cambrian seas but apparently so did a twenty centimenter cousin. Hurdia victoria, originally described in 1912, was known from just a jumble . . . → Read More: 100 Word Post: Hurdia victoria
By Kevin Zelnio, on February 23rd, 2009 8 comments Conferences, Fish, New Research, Organisms ASLO, Baited Camera Traps, Best of Zelnio, Black Swallower, Chiasmodon niger, Conference, Crustacea, Drazen, fish, Oxygen Minimum Zone, Scavenger, Snake Mackerel, Yeh, Zoarcidae I got the dreaded pop-up of doom as my macbook told me it could not install the latest update because I out of space. So I decided to poke around, see where I could save space and delete files. Sitting on my desktop for a couple years was an aptly titled folder, “Photos to Sort”, . . . → Read More: Big Gulpers In The Deep
By Kevin Zelnio, on February 19th, 2009 4 comments Seeps, Vent, & Whale Falls Alvinocarididae, Alvinocaris, Crustacea, Hydrothermal Vent, Shrimp, Wordle I just sent in the proofs to a paper that will come out in the next issue of the Proceedings of the Biological Society of Washington. I won’t go into much detail till it becomes available in April, but here is a wordle to give you a clue. The species name is blacked out until . . . → Read More: New Paper Teaser
By Kevin Zelnio, on January 19th, 2009 8 comments Gadgets & Gear, Organisms Annelida, Calender, Clock, Crustacea, Echinodermata, Entoprocta, Hydroid, Invertebrate, Mollusca, Octopus, SCAMIT SCAMIT (Southern California of Marine Invertebrate Taxonomists) has released the best calender of the year – a marine invertebrate calendar! Long time DSN reader Leslie Harris works at the Natural History Museum of Los Angeles County and put together this calendar to help support, “a non-profit dedicated to educating & supporting local taxonomists.” Not only . . . → Read More: Kick off ’09 with a Marine Invert Calendar and Clock
By Dr. M, on April 4th, 2007 16 comments Adaptations, Giant Isopod Arthropoda, Bathynomus, Body Size Evolution, Cope's Rule, Crustacea, Giant Isopod, Gigantism, Isopoda, Serolis Kevin’s wonderful post on the Giant Isopod inspired me to post on a topic I have long pondered. Frequent readers of DSN know that I am fond of Sylvia Earle and the topic of body size. Honestly, it is not just body size is all matter of size related issues. A roadside trip can . . . → Read More: Why is The Giant Isopod Giant?
By Kevin Zelnio, on April 4th, 2007 27 comments Adaptations, Giant Isopod, Organisms Arthropoda, Bathynomus, Best of Zelnio, Crustacea, Eye, Giant Isopod, Isopoda, Scavenger Bathynomus giganteus (Arthropoda: Crustacea: Isopoda: Cirolanidae) You know those cute little roly-poly bugs you found under rocks as a kid? You poke at them and they curl up into a little ball? Well, magnify that times 1000, take away the functional role of the eyes, head to the deep-sea and you’ve got the Giant . . . → Read More: From The Desk of Zelnio: Bathynomus giganteus
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