Note

1. Arms
   1. Arm formula: IV=II>I=III.
   2. Arm IV 50% of ML.
   3. Suckers of arms I-III in 2 series proximally and up to 8-10 series in mid-arm portion (photograph on right).
   4. Arms II suckers in up to 12-14 series in distally portion.
      
      

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      Figure.Scanning electron micrograph (SEM) of the mid-region of arm I, paratype, immature female, 55 mm ML.

       

   5. Inner sucker rings with 5-6 blunt, rounded teeth (photograph below, left).
   6. Outer sucker rings with 3 concentric rings of polygonal plates surrounded by a ring of smaller and more narrow plates (photographs below).
      
      

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      Figure. Left - SEM of arm sucker, paratype, immature female, 55 mm ML. Right - Same sucker, higher magnification. Bar = 10 microns.

    

2. Tentacular club
   1. Club with six sucker in transverse row at proximal end, 16-20 suckers at mid-club, then decreasing number of suckers toward tip.
   2. Club length 30% of ML.
   3. Club slightly expanded.
      
      

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      Figure. Oral view of middle region of club, SEM, 55 mm ML. Bar = 300 microns.

       

   4. Inner sucker ring with about 9 blunt, rounded teeth.
   5. Outer ring with two concentric rings composed of elongate polygonal plates.
      
      

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      Figure. Left - Oral view of club sucker, 55 mm ML; bar = 30 microns. Right - Same club sucker, enlarged; bar = 10 microns.

    

3. Buccal crown
   1. 16-18 suckers, in 2-3 series, on each buccal support.
4. Mantle
   1. Width 43% of ML.
5. Occipital region
   1. Occipital crest prominent.
   2. 3 occipital folds present.
   3. Olfactory organ at base of Occipital fold I.
6. Fins
   1. Fin length about 97% of lateral ML at 12 mm ML and 99% at larger sizes.
   2. Width across fins and mantle about 95% of ML.
   3. Length of longest fin ribs: 31-40% of ML.
   4. Each fin with 28 muscular ribs.
      

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      Figure. Dorsal view of fins and mantle, holotype.
7. Gladius
   1. Free rhachis 44% of ML.
   2. Gladius with broad conus.
      

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      Figure. Ventral view of gladius of holotype. Scale bar is 10 mm.
8. Spermatophore
   1. Drawing is a spermatophore of the holotype and an enlargement of the ejaculatory apparatus.
      

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9. Measurements



Squid	ZMH 2778	ZMH 2780a	ZMH 2779	ZMH 2780b
Sex	Imm. M.	Imm. M.	Imm. F.	Juvnile
ML, mm	65	63	55	12
MW, %ML	43.8	31.7	43.6	58.3
Fin L, %Lat. ML	97.6	95	96.8	97.9
Fin W, %ML	107.6	-	109	250
Arm I, %ML	47.6	44.4	52.7	45.8
Arm II, %ML	36.9	47.6	60.9	58.3
Arm III, %ML	47.6	49.2	47.2	50
Arm IV, %ML	36.9	44.6	58.1	56
Club L, %ML	30	-	32	29
Fin Rib L, %ML	38	-	40	31
Gladius W, %ML	18.5	18.1	-	-


Table of measurements modified from Salcedo-Vargas and Guerrero-Kommritz, 2000.

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About this page

Most illustrations are from Salcedo-Vargas and Guerrero-Kommritz, 2000. The photographs showing portions of the arm and club suckers are slightly different from photographs seen in the type description. Photographs were taken by M. A. Salcedo-Vargas.

References

Salcedo-Vargas, M. A. and J. Guerrero-Kommritz. 2000. Three new cephalopods from the Atlantic Ocean. Mitt. Hamb. Zool. Mus. Inst., 97: 31-44.