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Pandalus stenolepis captured at about 130 m depth in the channel between Lopez and San Juan Islands. Total length about 5.5 cm. (Photo by: Dave Cowles, August 2012)
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This side view shows the distinctive abdomen stripes, the very long rostrum, and the fact that both the first and second antennae are much longer than the carapace + rostrum. Note that one of the first antennae is broken. Also note the large paddle-like pleopods, one pair of which is extended in this photo. Photo by Dave Cowles July 2008
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This closeup of the side of the abdomen shows the distinctive stripes, and also the fact that in this shrimp, as in all Caridean shrimp, the pleuron of the second abdominal segment overlaps that of the first and third segment.
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The dorsal spines on the carapace are only on the front half of the carapace and the rostrum.
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The spines on the rostrum are found nearly out to the end--not just on the basal part. Note that ventral spines also are found nearly out to the end.
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Pandalopsis dispar captured at about 70 m depth in San Juan Channel. Total length (telson to rostrum) 15 cm. (Photo by: Dave Cowles, July 2008)
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A profile of abdominal segment 3 shows the spines present near the middle and the posterior end of the middorsal line
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The fourth abdominal segment also has a spine present at the posterior end of the middorsal line.
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This view of the left antennal scale, which is longer than the telson shows that the antennal lamella is slightly longer than the spine. Just above the scale the endopodite of the second antenna, which consists of several segments then a flexible whiplike "flagellum" composed of many small segments and being about as long as the animal's body. The antennal scale is the exopodite of the second antenna.
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As with all Pandalids, the carpus of the second leg is "multiarticulated"--it has many ringlike striations in it that allow it to bend. Most Pandalids that I have observed hold this second leg up next to the body and it is hard to get a clear view of it in a living individual.
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The telson has a double row of 6-10 spines along the dorsal surface. This is an oblique view of the telson from the right side, with the right uropods missing. The left uropods, which are slightly shorter than the telson, are visible behind the telson.
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This gravid female was collected at 375 m depth in the Okhotsk sea, near the southwestern shore of Kamchatka on April 12, 2008. Photo by Andrey Gontchar of VNIRO
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Dorsal view of the same shrimp. Photo by Andrey Gontchar.
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Pandalus eous, about 14 cm total length, from a 100 m depth benthic trawl in San Juan Channel, WA (Photo by: Dave Cowles, August 2006)
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Pandalus goniurus, nearly 8 cm long from telson tip to rostrum tip. Captured by otter trawl at 75 m depth, San Juan Channel. Note the bend in the abdomen, which is more prominent than in most Pandalid shrimp. (Photo by: Dave Cowles,m July 2008 )
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