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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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Crangon lar.
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Crangon vulgaris, the common sand-shrimp; male.
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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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Common Shrimp (Crangon vulgaris).
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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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Common Shrimp, Crangon vulgaris, Fabr.; male.
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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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Shrimps and Prawns: Above on Right (Crangon vulgaris); Above on Left (Crangon horcas); In the Center (Pandalus annulicosnis); To the right and middle below (Hippolyte sp); To the left below (Hippolyte pusiola); to the left of center (Mysis stenolepis).
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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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Closeup of Paracrangon echinata head showing the spiny rostrum. Photo by Dave Cowles, July 2005
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Most crangonids have a very stubby rostrum, seen here as the small "horn" between the eyes for Crangon alaskensis
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Shrimp; garnaal.
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A dorsal view shows that there are plenty of stiff spines sticking out to the sides, as well. Photo by Dave Cowles, July 2005
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As with all Crangonids, the first pereopod of Crangon alaskensis is subchelate and the carpus of the second pereopod (visible just above the chela) is simple rather than multiarticulated.
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The chelae of this species are subchelate. This is the right chela. Length about 2 mm. Photo by Dave Cowles, July 2005
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The dactyl of the 5th pereopod is not broad and flattened.
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This species has many tiny greenish eggs, which it carries on the pleopods under the abdomen as visible in this ventral photo.
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The carapace is smooth and has one median spine a short distance behind the eyes, as can be seen silhouetted in this view from the right side.
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Paracrangon echinata captured at 100 m depth in San Juan Channel. The arched posture with spines exposed is a typical defense "cataleptic" posture. Length about 6 cm. (Photo by: Dave Cowles July 1997)
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The 5th segment of the abdomen (left full segment in this photo) has no spines on the posterolateral margin (right edge of segment), and the 6th segment (middle of photo) has no longitudinal dorsal ridge. The uropods and telson are to the right.
