...Lydia M. Mäthger; Toby F. T. Collins; Pedro A. Lima SUMMARY In this paper we describe changes in spectral reflectivity of the light reflectors (iridophores) of the squid Alloteuthis subulata . The spectral changes that can be seen in living squid, can also be brought about by superfusing whole...

...L. M. Mäthger; E. J. Denton SUMMARY Observations were made of the reflective properties of the iridophore stripes of the squid Alloteuthis subulata and Loligo vulgaris , and the likely functions of these stripes are considered in terms of concealment and signalling. In both species, the mantle...

...C. M. Rogers; L. Nelson; B. J. Milligan; E. R. Brown ABSTRACT Excitation–contraction (EC) coupling was studied in central zone mantle muscle fibres of a squid ( Alloteuthis subulata ), a cuttlefish ( Sepia officinalis ) and an octopod ( Eledone cirrhosa ). Thin slices of muscle were used for twitch...

...J. B. Messenger; C. J. Cornwell; C. M. Reed ABSTRACT Colour changes in cephalopods are controlled by complex organs termed chromatophores whose radial muscles are directly innervated from the brain. In the squids Alloteuthis subulata and Loligo vulgaris , light microscopy of silver- or Methylene...

...Brian J. Milligan; N. A. Curtin; Quentin Bone ABSTRACT The mechanical properties of obliquely striated muscle fibres were investigated using thin slices of mantle from squid Alloteuthis subulata and cuttlefish Sepia officinalis . Brief tetani or twitch stimuli were used as this pattern is likely...