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Re: hope this would solve my problem
Hi Gayla. I can promise you that no species of Histioteuthis (to my knowledge) has hooks on any part of the arms or tentacles. You are actually in one of the luckiest places on Earth as you have the recently retired Prof. Richard (Dick) Young right there - a cephalopod guru.
Is there any way that you could post some images online - we can get to the bottom of this in no time. I'm pretty sure I have a few paralarval Histioteuthis pics around that I can post (I just have to find them), and a few others of other squid that you might be confusing them with.
Are the hooks found on the arms in 2 rows, and on the tentacle clubs (Enoploteuthidae)
Are the arms beset with 2 rows of suckers, and at ML's > 12 mm the tentacles armed with 2 rows of hooks (the medial rows), with the marginal rows being simple suckers (Onychoteuthidae).
Are there 4 rows of suckers/hooks on the arms - as in the medial 2 rows of hooks on arms 1-3 with another row of suckers either side these hooks (Gonatidae)
If the mantle is studded with small photophores then you most likely have Histioteuthis spp. These paralarvae are very distinctive!
But there are many different kinds of squid, as you very well know.
Have you a copy of:
Sweeney, M.J.; Roper, C.F.E.; Mangold, K.M.; Clarke, M.R.; Boletzky, S.v. (eds) 1992. "Larval" and juvenile cephalopods: a manual for their identification. Smithsonian Contributions to Zoology 513: 282pp.
If not then it is essential that you get a copy.
If you post some images online I'm sure we can help out.
Kindest
Steve
Gayla said:I'm going crazy with some squid id's in Hawaii ... they're from tuna guts.
I've been placing a lot of squids in Histioteuthis based on distinctive photophores - oval with a light spot on one side. Then I get a small batch that have hooks ... uh oh.The beak has more of a ridge (like Enoploteuthid) than a fin (like Histioteuthis), but they're small so I could be wrong. So body of Histioteuthis and arms and beak of Enoploteuthis? I never found a good picture of photophores of E.higginsi or E.reticulata so I just figured I got a ton of my Histioteuthis id's wrong and had to go dig them all up ... unless you've just found a Histioteuthis with hooks (oh please, oh please)!!
Hi Gayla. I can promise you that no species of Histioteuthis (to my knowledge) has hooks on any part of the arms or tentacles. You are actually in one of the luckiest places on Earth as you have the recently retired Prof. Richard (Dick) Young right there - a cephalopod guru.
Is there any way that you could post some images online - we can get to the bottom of this in no time. I'm pretty sure I have a few paralarval Histioteuthis pics around that I can post (I just have to find them), and a few others of other squid that you might be confusing them with.
Are the hooks found on the arms in 2 rows, and on the tentacle clubs (Enoploteuthidae)
Are the arms beset with 2 rows of suckers, and at ML's > 12 mm the tentacles armed with 2 rows of hooks (the medial rows), with the marginal rows being simple suckers (Onychoteuthidae).
Are there 4 rows of suckers/hooks on the arms - as in the medial 2 rows of hooks on arms 1-3 with another row of suckers either side these hooks (Gonatidae)
If the mantle is studded with small photophores then you most likely have Histioteuthis spp. These paralarvae are very distinctive!
But there are many different kinds of squid, as you very well know.
Have you a copy of:
Sweeney, M.J.; Roper, C.F.E.; Mangold, K.M.; Clarke, M.R.; Boletzky, S.v. (eds) 1992. "Larval" and juvenile cephalopods: a manual for their identification. Smithsonian Contributions to Zoology 513: 282pp.
If not then it is essential that you get a copy.
If you post some images online I'm sure we can help out.
Kindest
Steve