Smithsonian Institution

Search Results

Collections Search Center
11 documents - page 1 of 1

Cephaloscyllium ventriosum

view Cephaloscyllium ventriosum digital asset number 1
Vessel:
Albatross
Preparation:
Unknown
Radiograph
Prep Count:
1
1
Specimen Count:
1
Site Number:
TT 2684
Record Last Modified:
10 Feb 2017
Taxonomy:
Animalia Chordata Chondrichthyes Carcharhiniformes Scyliorhinidae
Published Name:
Cephaloscyllium ventriosum
USNM Number:
52853
See more items in:
Fishes
Vertebrate Zoology
Data Source:
NMNH - Vertebrate Zoology - Fishes Division
Additional Online Media:

Cephaloscyllium ventriosum

view Cephaloscyllium ventriosum digital asset number 1
Collector:
C. F. R.
Ocean/Sea/Gulf:
Pacific
Preparation:
Acetate
Prep Count:
1
Place:
California: Avilla Bay, California, United States, Pacific
Specimen Count:
1
Record Last Modified:
14 Aug 2015
Taxonomy:
Animalia Chordata Chondrichthyes Carcharhiniformes Scyliorhinidae
Published Name:
Cephaloscyllium ventriosum
Other Numbers:
Catalog Number : USNM 196142
USNM Number:
RAD100026
See more items in:
Fishes
Fish Images
Vertebrate Zoology
Data Source:
NMNH - Vertebrate Zoology - Fishes Division

Cephaloscyllium ventriosum

view Cephaloscyllium ventriosum digital asset number 1
Collector:
David S. Jordan
Ocean/Sea/Gulf:
Pacific
Preparation:
Illustration
Prep Count:
1
Place:
California, Santa Barbara., California, United States, Pacific
Collection Date:
1880
Specimen Count:
2
Notes:
Inventory record 1979-80. see catalog ledger for further data.
Record Last Modified:
19 Aug 2014
Taxonomy:
Animalia Chordata Chondrichthyes Carcharhiniformes Scyliorhinidae
Published Name:
Cephaloscyllium ventriosum
USNM Number:
26866
See more items in:
Fishes
Vertebrate Zoology
Data Source:
NMNH - Vertebrate Zoology - Fishes Division

Cephaloscyllium ventriosum

view Cephaloscyllium ventriosum digital asset number 1
Collector:
C. F. R.
Ocean/Sea/Gulf:
Pacific
Place:
California: Avilla Bay, California, United States, Pacific
Specimen Count:
1
Record Last Modified:
21 Jul 2015
Taxonomy:
Animalia Chordata Chondrichthyes Carcharhiniformes Scyliorhinidae
Published Name:
Cephaloscyllium ventriosum
Accession Number:
234759
USNM Number:
196142
See more items in:
Fishes
Vertebrate Zoology
Data Source:
NMNH - Vertebrate Zoology - Fishes Division

Cephaloscyllium ventriosum

view Cephaloscyllium ventriosum digital asset number 1
Vessel:
Albatross
Preparation:
Polyester
Radiograph Note Paper
Prep Count:
2
1
Specimen Count:
3
Site Number:
TT 2684
Notes:
From the Stewart Springer Radiograph Collection.
Record Last Modified:
13 Feb 2017
Taxonomy:
Animalia Chordata Chondrichthyes Carcharhiniformes Scyliorhinidae
Published Name:
Cephaloscyllium ventriosum
Other Numbers:
Catalog Number : USNM 52853
USNM Number:
RAD110289
See more items in:
Fishes
Fish Images
Vertebrate Zoology
Data Source:
NMNH - Vertebrate Zoology - Fishes Division
Additional Online Media:

Cephaloscyllium ventriosum

Collector:
David S. Jordan
Ocean/Sea/Gulf:
Pacific
Place:
Santa Barbara, Cal., California, United States, Pacific
Specimen Count:
1
Record Last Modified:
19 Aug 2014
Taxonomy:
Animalia Chordata Chondrichthyes Carcharhiniformes Scyliorhinidae
Published Name:
Cephaloscyllium ventriosum
USNM Number:
25084
See more items in:
Fishes
Vertebrate Zoology
Data Source:
NMNH - Vertebrate Zoology - Fishes Division

Cephaloscyllium ventriosum

Collector:
David S. Jordan
Ocean/Sea/Gulf:
Pacific
Place:
Santa Barbara, Cal., California, United States, Pacific
Specimen Count:
3
Record Last Modified:
20 Aug 2014
Taxonomy:
Animalia Chordata Chondrichthyes Carcharhiniformes Scyliorhinidae
Published Name:
Cephaloscyllium ventriosum
USNM Number:
26951
See more items in:
Fishes
Vertebrate Zoology
Data Source:
NMNH - Vertebrate Zoology - Fishes Division

Cephaloscyllium ventriosum

Vessel:
Nautilus
Ocean/Sea/Gulf:
Pacific
Depth (m):
0 - 46
Preparation:
Glycerin with Cartilage Stain
Prep Count:
1
Place:
Monterey Bay California., California, United States, Pacific
Collection Date:
4 Feb 1964
Specimen Count:
1
Site Number:
7
Record Last Modified:
19 Aug 2014
Taxonomy:
Animalia Chordata Chondrichthyes Carcharhiniformes Scyliorhinidae
Published Name:
Cephaloscyllium ventriosum
USNM Number:
221359
See more items in:
Fishes
Vertebrate Zoology
Data Source:
NMNH - Vertebrate Zoology - Fishes Division

Otodistomum veliporum

Preparation:
Alcohol (Ethanol)
Prep Count:
1
Remarks:
Vial/bottle
Place:
Venice, Isthmus Catalina, California, United States, North America
Collection Date:
1914
Specimen Count:
1
Notes:
{"hostGen":"Cephaloscyllium","hostSpec":"ventriosum","hostSyn":"Cephaloscyllium uter","hostBodyLoc":"stomach"}
Original USNPC preservative was a solution of 70% ethanol, 3% formalin, and 2% glycerine
Record Last Modified:
21 Mar 2016
Common name:
Trematodes
Taxonomy:
Animalia Platyhelminthes Trematoda Azygiida Azygiidae
Other Numbers:
USNPC Accession (Catalog) : 007399.00
USNM Number:
1320249
See more items in:
US National Parasite Collection
Parasite Collection
Invertebrate Zoology
Data Source:
NMNH - Invertebrate Zoology Dept.

Tetrarhynchus catali

Collector:
G. A. Maccallum
Ocean/Sea/Gulf:
North Pacific Ocean
Preparation:
Slide
Prep Count:
1
Place:
Catalina Islands, California, United States, North Pacific Ocean
Specimen Count:
1
Notes:
{"hostGen":"Cephaloscyllium","hostSpec":"ventriosum","hostSyn":"Catulus uter","hostBodyLoc":"gills or intestine","hostFldNo":"GAMacCallum-1608"}
Record Last Modified:
21 Mar 2016
Common name:
Cestoda
Taxonomy:
Animalia Platyhelminthes Cestoda Trypanorhyncha Tentaculariidae
Other Numbers:
USNPC Accession (Catalog) : 036003.00
USNM Number:
1336723
See more items in:
US National Parasite Collection
Parasite Collection
Invertebrate Zoology
Data Source:
NMNH - Invertebrate Zoology Dept.

"Shark Vision" Shines Light on Biofluorescent Species

view "Shark Vision" Shines Light on Biofluorescent Species digital asset number 1
Creator:
SmithsonianMag RSS
Type:
Blog posts
Smithsonian staff publications
Blog posts
Published Date:
Tue, 26 Apr 2016 19:46:59 +0000
Blog Post Category:
Smart News
Smart News Science
Description:

Donning scuba gear and carrying a Red Epic camera equipped with a special filter, researchers recently dove into Scripps Canyon off the coast of San Diego to study how catsharks see the world.

On their own, catsharks are pretty bland species. The small, roughly 3-foot sharks spend most of their life at depths of around 2,000 feet, where only wavelengths of blue light penetrate. But researchers have known for awhile that these homely sharks are biofluorescent. This doesn't mean that the sharks generate light, but rather they absorb and then re-emit light at a different wavelength or color. 

Over the last decade, David Gruber, a researcher at Baruch College, has discovered dozens of bioflouorecent fish and sharks around the world. But now he's interested in why the creatures have such bright patterns and, since they are not visible to the human eye, how the animals actually see them. So the team developed a special filter to get a shark’s-eye view of the ocean, focusing on two species of catsharks: the swell shark, Cephaloscyllium ventriosum, and the chain catshark, cyliorhinus rotifer.

The team first examined the eyes of catsharks and discovered long rods that allow the animals to see in extremely low light, writes Brian Clark Howard at National Geographic. They also found that the sharks have pigments that only allow them to see in the blue and green spectrum, as opposed to human eyes which have cones that pick up red, green, and blue light.

“Some sharks’ eyes are 100 times better than ours in low-light conditions,” Gruber says in a press release. “They swim many meters below the surface, in areas that are incredibly difficult for a human to see anything. But that’s where they’ve been living for 400 million years, so their eyes have adapted well to that dim, pure-blue environment.” 

In addition to the dim light, the skin of the animals contains a little-understood pigment that absorbs the blue light and emits a fluorescent green. Using that information, Gruber and his team created their “shark’s eye” camera that simulates what sharks see and went on several night dives to record the animals. Though they were only able to film sharks in the shallower regions of the canyon, they were still impressed with the view.

“Imagine being at a disco party with only blue lighting, so everything looks blue,” Gruber tells Howard. “Suddenly, someone jumps onto the dance floor with an outfit covered in patterned fluorescent paint that converts blue light into green. They would stand out like a sore thumb. That's what these sharks are doing.”

Through the filters, swell sharks were covered in bright green spots and females also had a “face mask” of glowing spots. The chain catsharks were covered in alternating light and dark areas, while the males’ pelvic claspers, used in reproduction, also glowed. The team recently published their results in the journal Scientific Reports.

According to Elizabeth Preston at The Atlantic, Gruber has found more than 180 fluorescing fish and at least one Day-Glo sea-turtle species in the last five years. He says he thinks the patterns make the animals more visible to each other in the deep ocean, and may be involved in methods of communication we haven’t yet discovered. “It makes perfect sense if you think about life in the blue ocean,” he tells Preston. “Why wouldn’t they come up with a way to make their world richer in texture?”

Beyond shark vision, Gruber hopes to create more cameras that simulate what other ocean animals see. “This work forces us to take a step out of the human perspective and start imagining the world through a shark's perspective,” Gruber tells Howard. “Hopefully it will also inspire us to protect them better.”

Topic:
Custom RSS
See more post:
Smithsonian Article Database
Data Source:
SmithsonianMag RSS

Modify Your Search






or


Narrow By